{"id":9319656652952,"title":"SleepMaker Miracoil Advance M402 Firm Deep Cloud Top Mattress","handle":"sleepmaker-miracoil-advance-m402-firm-deep-cloud-top-mattress","description":"\u003cdiv class=\"sh-mattress-edit\"\u003e\n\n \u003csection class=\"sh-editorial-hero\"\u003e\n\n \u003cp class=\"sh-editorial-label\"\u003e\n Sleep House · SleepMaker Miracoil Advance Collection\n \u003c\/p\u003e\n\n \u003ch2\u003eFirm Deep Cloud-Top Comfort with Reinforced 5-Zone Support\u003c\/h2\u003e\n\n \u003cp\u003e\n The SleepMaker Miracoil Advance M402 Firm combines a cushioned\n Deep Cloud-Top with the Miracoil Advance five-zone continuous-coil\n support system and Kevlar Powerband reinforcement. It is designed for\n sleepers who prefer a stable, supportive surface with reduced sink while\n retaining measured cushioning through the upper comfort section.\n \u003c\/p\u003e\n\n \u003c\/section\u003e\n\n \u003cdiv class=\"sh-confidence-strip\"\u003e\n\n \u003cdiv class=\"sh-confidence-item\"\u003e\n \u003cstrong\u003eKevlar Powerband\u003c\/strong\u003e\n \u003cspan\u003eAdditional reinforcement through the central support area\u003c\/span\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-confidence-item\"\u003e\n \u003cstrong\u003eMiracoil Advance 5-Zone\u003c\/strong\u003e\n \u003cspan\u003eStable continuous-coil support across the mattress\u003c\/span\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-confidence-item\"\u003e\n \u003cstrong\u003eAustralian Made\u003c\/strong\u003e\n \u003cspan\u003eBacked by a 10-year manufacturer warranty\u003c\/span\u003e\n \u003c\/div\u003e\n\n \u003c\/div\u003e\n\n \u003csection class=\"sh-story-intro\"\u003e\n\n \u003cp class=\"sh-section-kicker\"\u003e\n M402 Firm Profile\n \u003c\/p\u003e\n\n \u003ch2\u003eA firm surface with deeper comfort layers and central reinforcement\u003c\/h2\u003e\n\n \u003cp\u003e\n The M402 Firm is intended for customers who want the stable response of\n a firmer spring mattress but do not want a completely flat or minimally\n cushioned surface. Its Deep Cloud-Top adds measured comfort above the\n Miracoil spring system, while the Kevlar Powerband strengthens the\n central supporting platform.\n \u003c\/p\u003e\n\n \u003c\/section\u003e\n\n \u003csection class=\"sh-feature-editorial\"\u003e\n\n \u003cdiv class=\"sh-feature-heading\"\u003e\n\n \u003cp class=\"sh-section-kicker\"\u003e\n Support Architecture\n \u003c\/p\u003e\n\n \u003ch2\u003eInside the Miracoil Advance M402 Firm\u003c\/h2\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-feature-row\"\u003e\n\n \u003cdiv class=\"sh-feature-number\"\u003e01\u003c\/div\u003e\n\n \u003ch3\u003eMiracoil Advance 5-Zone Support\u003c\/h3\u003e\n\n \u003cp\u003e\n The Miracoil Advance system uses a strengthened continuous-coil\n construction arranged across five response zones. This creates\n different support characteristics through the length of the mattress\n rather than one identical spring response from head to foot.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-feature-row\"\u003e\n\n \u003cdiv class=\"sh-feature-number\"\u003e02\u003c\/div\u003e\n\n \u003ch3\u003eKevlar Powerband Reinforcement\u003c\/h3\u003e\n\n \u003cp\u003e\n Kevlar Powerbands reinforce the mattress through its central support\n area. This additional strengthening is designed to create a more\n stable underlying platform through the section that commonly carries\n greater body weight.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-feature-row\"\u003e\n\n \u003cdiv class=\"sh-feature-number\"\u003e03\u003c\/div\u003e\n\n \u003ch3\u003eDeep Cloud-Top Construction\u003c\/h3\u003e\n\n \u003cp\u003e\n The elevated Deep Cloud-Top adds a substantial cushioned section above\n the main spring system. In the Firm configuration, it softens the\n initial contact without removing the mattress’s stable overall\n character.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-feature-row\"\u003e\n\n \u003cdiv class=\"sh-feature-number\"\u003e04\u003c\/div\u003e\n\n \u003ch3\u003eControlled Firm Response\u003c\/h3\u003e\n\n \u003cp\u003e\n The Firm comfort profile limits excessive compression through the\n upper section and helps the sleeper remain more on top of the mattress\n than on the Medium or Plush versions.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-feature-row\"\u003e\n\n \u003cdiv class=\"sh-feature-number\"\u003e05\u003c\/div\u003e\n\n \u003ch3\u003eKülKōte Temperature Technology\u003c\/h3\u003e\n\n \u003cp\u003e\n KülKōte is designed to absorb, store and release excess heat energy as\n conditions around the sleeping surface change. It forms part of the\n mattress’s overall temperature-management construction.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-feature-row\"\u003e\n\n \u003cdiv class=\"sh-feature-number\"\u003e06\u003c\/div\u003e\n\n \u003ch3\u003eNatural Wool Quilt\u003c\/h3\u003e\n\n \u003cp\u003e\n Wool fibre contributes surface softness and forms part of the\n mattress’s breathability and moisture-management construction.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-feature-row\"\u003e\n\n \u003cdiv class=\"sh-feature-number\"\u003e07\u003c\/div\u003e\n\n \u003ch3\u003eDryTech Fabric\u003c\/h3\u003e\n\n \u003cp\u003e\n DryTech fabric is designed to assist with moisture management close to\n the sleeping surface and complement the wool comfort layer above the\n support system.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-feature-row\"\u003e\n\n \u003cdiv class=\"sh-feature-number\"\u003e08\u003c\/div\u003e\n\n \u003ch3\u003eAustralian Manufacturing\u003c\/h3\u003e\n\n \u003cp\u003e\n The M402 is manufactured in Australia and is supplied with a ten-year\n manufacturer warranty, subject to SleepMaker’s applicable care and\n warranty conditions.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003c\/section\u003e\n\n \u003csection class=\"sh-comfort-profile\"\u003e\n\n \u003cdiv\u003e\n\n \u003cp class=\"sh-section-kicker\"\u003e\n Comfort Guide\n \u003c\/p\u003e\n\n \u003ch2\u003eHow does the M402 Firm feel?\u003c\/h2\u003e\n\n \u003cp\u003e\n The M402 Firm sits towards the more supportive end of the comfort\n range. The Deep Cloud-Top creates noticeable surface cushioning, but\n the overall response remains stable, controlled and less compressive\n than the Medium and Plush versions.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-comfort-scale\"\u003e\n\n \u003cdiv class=\"sh-scale-labels\"\u003e\n \u003cspan\u003ePlush\u003c\/span\u003e\n \u003cspan\u003eMedium\u003c\/span\u003e\n \u003cspan\u003eFirm\u003c\/span\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-scale-track\"\u003e\n \u003cdiv class=\"sh-scale-fill\" style=\"width:84%;\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"sh-scale-marker\" style=\"left:84%;\"\u003e\u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-scale-result\"\u003e\n Reinforced Firm Deep Cloud-Top Support\n \u003c\/div\u003e\n\n \u003c\/div\u003e\n\n \u003c\/section\u003e\n\n \u003csection class=\"sh-specifications\"\u003e\n\n \u003cdiv class=\"sh-specifications-header\"\u003e\n\n \u003ch2\u003eProduct Specification\u003c\/h2\u003e\n\n \u003cspan\u003eMiracoil Advance M402 Firm\u003c\/span\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eComfort description\u003c\/span\u003e\n \u003cstrong\u003eFirm\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eComfort-top design\u003c\/span\u003e\n \u003cstrong\u003eDeep Cloud-Top\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eMattress construction\u003c\/span\u003e\n \u003cstrong\u003eContinuous-Coil Spring Mattress\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eSupport system\u003c\/span\u003e\n \u003cstrong\u003eMiracoil Advance 5-Zone Support\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eCentral reinforcement\u003c\/span\u003e\n \u003cstrong\u003eKevlar Powerband\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eExpected mattress response\u003c\/span\u003e\n \u003cstrong\u003eFirm, Stable and Responsive\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eTemperature technology\u003c\/span\u003e\n \u003cstrong\u003eKülKōte\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eNatural comfort material\u003c\/span\u003e\n \u003cstrong\u003eWool Quilt\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eSurface fabric\u003c\/span\u003e\n \u003cstrong\u003eDryTech Fabric\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eCountry of manufacture\u003c\/span\u003e\n \u003cstrong\u003eAustralia\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eAvailable sizes\u003c\/span\u003e\n \u003cstrong\u003e\n Single, Long Single, King Single, Double, Queen and King\n \u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eManufacturer warranty\u003c\/span\u003e\n \u003cstrong\u003e10 Years\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003c\/section\u003e\n\n \u003csection class=\"sh-sleeper-panel\"\u003e\n\n \u003cdiv\u003e\n\n \u003cp class=\"sh-editorial-label\"\u003e\n Who May Prefer the M402 Firm?\n \u003c\/p\u003e\n\n \u003ch2\u003eFor sleepers wanting stable support with measured top cushioning\u003c\/h2\u003e\n\n \u003cp\u003e\n The M402 Firm may suit customers who want to feel supported more on\n top of the mattress but still appreciate the cushioned contact created\n by a Deep Cloud-Top.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-sleeper-points\"\u003e\n\n \u003cdiv class=\"sh-sleeper-point\"\u003e\n Sleepers who prefer reduced surface sink\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-sleeper-point\"\u003e\n Back and some stomach sleepers seeking a stable spring surface\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-sleeper-point\"\u003e\n Customers who find Medium or Plush mattresses too accommodating\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-sleeper-point\"\u003e\n Sleepers wanting traditional spring responsiveness with extra reinforcement\n \u003c\/div\u003e\n\n \u003c\/div\u003e\n\n \u003c\/section\u003e\n\n \u003csection class=\"sh-practical-info\"\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eM402 Firm vs M302 Medium\u003c\/h2\u003e\n\n \u003cp\u003e\n The M402 Firm provides a more stable and less compressive surface than\n the M302 Medium.\n \u003c\/p\u003e\n\n \u003cp\u003e\n The M402 also adds Kevlar Powerband reinforcement and a deeper\n Cloud-Top configuration, while the M302 Medium focuses on a more\n balanced and broadly adaptable comfort level.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eFirm vs Medium\u003c\/h2\u003e\n\n \u003cp\u003e\n The M402 Firm provides less surface compression and a stronger initial\n sense of stability than the M402 Medium.\n \u003c\/p\u003e\n\n \u003cp\u003e\n Medium may suit customers wanting a more forgiving balance of\n cushioning and support. Firm may suit customers prioritising reduced\n sink and stronger surface resistance.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eFirm vs Plush\u003c\/h2\u003e\n\n \u003cp\u003e\n The Firm version allows substantially less compression through the\n upper comfort section than the Plush model.\n \u003c\/p\u003e\n\n \u003cp\u003e\n Plush focuses on deeper cushioning and softer body contact, while Firm\n focuses on stability and controlled support.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eWhat Does Kevlar Powerband Do?\u003c\/h2\u003e\n\n \u003cp\u003e\n The Kevlar Powerband is an additional reinforcement component through\n the central section of the mattress.\n \u003c\/p\u003e\n\n \u003cp\u003e\n It strengthens the supporting platform but should not be interpreted\n as making the mattress indestructible or preventing all normal wear.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eContinuous Coil vs Pocket Spring\u003c\/h2\u003e\n\n \u003cp\u003e\n The Miracoil Advance system uses a connected continuous-coil\n construction rather than individually enclosed pocket springs.\n \u003c\/p\u003e\n\n \u003cp\u003e\n Continuous-coil mattresses generally feel more connected and\n responsive, while pocket springs respond more independently across the\n sleeping surface.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eUnderstanding 5-Zone Support\u003c\/h2\u003e\n\n \u003cp\u003e\n Five-zone construction means the spring system uses different support\n responses through the length of the mattress instead of one identical\n feel from head to foot.\n \u003c\/p\u003e\n\n \u003cp\u003e\n The perceived effect of each zone will vary according to body weight,\n height, sleeping position and where the sleeper rests on the mattress.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eDeep Cloud-Top vs Standard Cloud-Top\u003c\/h2\u003e\n\n \u003cp\u003e\n A Deep Cloud-Top provides a more substantial raised comfort section\n above the main spring support system.\n \u003c\/p\u003e\n\n \u003cp\u003e\n It can add more surface cushioning than a shallower top design without\n necessarily changing the mattress from Firm to Medium or Plush.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eKülKōte and Sleep Temperature\u003c\/h2\u003e\n\n \u003cp\u003e\n KülKōte is designed to absorb, store and release heat as conditions\n around the sleeping surface change.\n \u003c\/p\u003e\n\n \u003cp\u003e\n Actual sleeping temperature will still depend on room conditions,\n mattress protectors, sheets, quilts and individual sensitivity.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eWool Quilt and DryTech\u003c\/h2\u003e\n\n \u003cp\u003e\n Wool and DryTech form part of the mattress’s breathability and\n moisture-management construction.\n \u003c\/p\u003e\n\n \u003cp\u003e\n These materials do not guarantee that every sleeper will remain cool\n or dry under all environmental and bedding conditions.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003ePartner Movement\u003c\/h2\u003e\n\n \u003cp\u003e\n Because Miracoil is a connected continuous-coil system, movement can\n feel different from an independently pocketed spring mattress.\n \u003c\/p\u003e\n\n \u003cp\u003e\n Complete elimination of partner disturbance cannot be guaranteed.\n Results depend on mattress size, sleeper weight and movement.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eBed Base Requirements\u003c\/h2\u003e\n\n \u003cp\u003e\n Place the mattress on a flat, stable and suitably supportive bed base.\n Slats and centre supports should be secure, level and appropriately\n spaced.\n \u003c\/p\u003e\n\n \u003cp\u003e\n A damaged, uneven or sagging base may affect mattress comfort,\n performance and warranty eligibility.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eBefore You Order\u003c\/h2\u003e\n\n \u003cp\u003e\n Firm is a general comfort description rather than a standardised\n firmness measurement. Feel will vary according to body weight,\n sleeping position, bed base and previous mattress experience.\n \u003c\/p\u003e\n\n \u003cp\u003e\n A firmer mattress is not automatically more suitable for every\n sleeper. Customers moving from a Medium or Plush model may find the\n M402 Firm noticeably more stable and less cushioned.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eDelivery\u003c\/h2\u003e\n\n \u003cp\u003e\n Delivery availability and charges depend on mattress size, production\n availability, destination postcode and property access.\n \u003c\/p\u003e\n\n \u003cp\u003e\n Customers outside Melbourne should confirm delivery availability and\n applicable charges before ordering.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eMattress Care\u003c\/h2\u003e\n\n \u003cp\u003e\n Use a quality washable mattress protector and keep the mattress clean,\n dry and adequately ventilated.\n \u003c\/p\u003e\n\n \u003cp\u003e\n Rotate the mattress according to SleepMaker’s care guidance and do not\n flip it unless specifically instructed by the manufacturer.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003c\/section\u003e\n\n \u003cdiv class=\"sh-product-disclaimer\"\u003e\n\n \u003cstrong\u003eImportant comfort note:\u003c\/strong\u003e\n This mattress uses the Miracoil Advance continuous-coil support system and\n is not a pocket spring mattress. Firm is a general comfort description\n rather than a standardised firmness measurement. Individual comfort and\n temperature experience will vary according to body weight, sleeping\n position, bedding, room conditions and the supporting bed base. This\n listing includes the mattress only unless otherwise stated.\n\n \u003c\/div\u003e\n\n\u003c\/div\u003e","published_at":"2026-08-02T06:14:48-04:00","created_at":"2026-08-02T01:27:36-04:00","vendor":"Sleepmaker","type":"","tags":["SleepMaker"],"price":114900,"price_min":114900,"price_max":219900,"available":true,"price_varies":true,"compare_at_price":234900,"compare_at_price_min":234900,"compare_at_price_max":429900,"compare_at_price_varies":true,"variants":[{"id":49623128113304,"title":"Single (92x188cm)","option1":"Single (92x188cm)","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"SleepMaker Miracoil Advance M402 Firm Deep Cloud Top Mattress - Single (92x188cm)","public_title":"Single (92x188cm)","options":["Single (92x188cm)"],"price":114900,"weight":72000,"compare_at_price":234900,"inventory_quantity":9,"inventory_management":"shopify","inventory_policy":"deny","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":49623128146072,"title":"Long Single (92x204cm)","option1":"Long Single (92x204cm)","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"SleepMaker Miracoil Advance M402 Firm Deep Cloud Top Mattress - Long Single (92x204cm)","public_title":"Long Single (92x204cm)","options":["Long Single (92x204cm)"],"price":124900,"weight":72000,"compare_at_price":254900,"inventory_quantity":8,"inventory_management":"shopify","inventory_policy":"deny","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":49623128178840,"title":"King Single (107x204cm)","option1":"King Single (107x204cm)","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"SleepMaker Miracoil Advance M402 Firm Deep Cloud Top Mattress - King Single (107x204cm)","public_title":"King Single (107x204cm)","options":["King Single (107x204cm)"],"price":134900,"weight":72000,"compare_at_price":264900,"inventory_quantity":8,"inventory_management":"shopify","inventory_policy":"deny","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":49623128211608,"title":"Double (138x188cm)","option1":"Double (138x188cm)","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"SleepMaker Miracoil Advance M402 Firm Deep Cloud Top Mattress - Double (138x188cm)","public_title":"Double (138x188cm)","options":["Double (138x188cm)"],"price":154900,"weight":80000,"compare_at_price":299900,"inventory_quantity":8,"inventory_management":"shopify","inventory_policy":"deny","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":49623128244376,"title":"Queen (153x204cm)","option1":"Queen (153x204cm)","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"SleepMaker Miracoil Advance M402 Firm Deep Cloud Top Mattress - Queen (153x204cm)","public_title":"Queen (153x204cm)","options":["Queen (153x204cm)"],"price":169900,"weight":72000,"compare_at_price":339900,"inventory_quantity":5,"inventory_management":"shopify","inventory_policy":"deny","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":49623128277144,"title":"King (183x204cm)","option1":"King (183x204cm)","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"SleepMaker Miracoil Advance M402 Firm Deep Cloud Top Mattress - King (183x204cm)","public_title":"King (183x204cm)","options":["King (183x204cm)"],"price":219900,"weight":72000,"compare_at_price":429900,"inventory_quantity":6,"inventory_management":"shopify","inventory_policy":"deny","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/www.sleephouse.com.au\/cdn\/shop\/files\/M402_SLEEP_HOUSE.png?v=1785665678"],"featured_image":"\/\/www.sleephouse.com.au\/cdn\/shop\/files\/M402_SLEEP_HOUSE.png?v=1785665678","options":["Size"],"media":[{"alt":"SleepMaker Miracoil Advance M402 Deep Cloud Top Mattress","id":45112950816920,"position":1,"preview_image":{"aspect_ratio":1.333,"height":1086,"width":1448,"src":"\/\/www.sleephouse.com.au\/cdn\/shop\/files\/M402_SLEEP_HOUSE.png?v=1785665678"},"aspect_ratio":1.333,"height":1086,"media_type":"image","src":"\/\/www.sleephouse.com.au\/cdn\/shop\/files\/M402_SLEEP_HOUSE.png?v=1785665678","width":1448}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cdiv class=\"sh-mattress-edit\"\u003e\n\n \u003csection class=\"sh-editorial-hero\"\u003e\n\n \u003cp class=\"sh-editorial-label\"\u003e\n Sleep House · SleepMaker Miracoil Advance Collection\n \u003c\/p\u003e\n\n \u003ch2\u003eFirm Deep Cloud-Top Comfort with Reinforced 5-Zone Support\u003c\/h2\u003e\n\n \u003cp\u003e\n The SleepMaker Miracoil Advance M402 Firm combines a cushioned\n Deep Cloud-Top with the Miracoil Advance five-zone continuous-coil\n support system and Kevlar Powerband reinforcement. It is designed for\n sleepers who prefer a stable, supportive surface with reduced sink while\n retaining measured cushioning through the upper comfort section.\n \u003c\/p\u003e\n\n \u003c\/section\u003e\n\n \u003cdiv class=\"sh-confidence-strip\"\u003e\n\n \u003cdiv class=\"sh-confidence-item\"\u003e\n \u003cstrong\u003eKevlar Powerband\u003c\/strong\u003e\n \u003cspan\u003eAdditional reinforcement through the central support area\u003c\/span\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-confidence-item\"\u003e\n \u003cstrong\u003eMiracoil Advance 5-Zone\u003c\/strong\u003e\n \u003cspan\u003eStable continuous-coil support across the mattress\u003c\/span\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-confidence-item\"\u003e\n \u003cstrong\u003eAustralian Made\u003c\/strong\u003e\n \u003cspan\u003eBacked by a 10-year manufacturer warranty\u003c\/span\u003e\n \u003c\/div\u003e\n\n \u003c\/div\u003e\n\n \u003csection class=\"sh-story-intro\"\u003e\n\n \u003cp class=\"sh-section-kicker\"\u003e\n M402 Firm Profile\n \u003c\/p\u003e\n\n \u003ch2\u003eA firm surface with deeper comfort layers and central reinforcement\u003c\/h2\u003e\n\n \u003cp\u003e\n The M402 Firm is intended for customers who want the stable response of\n a firmer spring mattress but do not want a completely flat or minimally\n cushioned surface. Its Deep Cloud-Top adds measured comfort above the\n Miracoil spring system, while the Kevlar Powerband strengthens the\n central supporting platform.\n \u003c\/p\u003e\n\n \u003c\/section\u003e\n\n \u003csection class=\"sh-feature-editorial\"\u003e\n\n \u003cdiv class=\"sh-feature-heading\"\u003e\n\n \u003cp class=\"sh-section-kicker\"\u003e\n Support Architecture\n \u003c\/p\u003e\n\n \u003ch2\u003eInside the Miracoil Advance M402 Firm\u003c\/h2\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-feature-row\"\u003e\n\n \u003cdiv class=\"sh-feature-number\"\u003e01\u003c\/div\u003e\n\n \u003ch3\u003eMiracoil Advance 5-Zone Support\u003c\/h3\u003e\n\n \u003cp\u003e\n The Miracoil Advance system uses a strengthened continuous-coil\n construction arranged across five response zones. This creates\n different support characteristics through the length of the mattress\n rather than one identical spring response from head to foot.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-feature-row\"\u003e\n\n \u003cdiv class=\"sh-feature-number\"\u003e02\u003c\/div\u003e\n\n \u003ch3\u003eKevlar Powerband Reinforcement\u003c\/h3\u003e\n\n \u003cp\u003e\n Kevlar Powerbands reinforce the mattress through its central support\n area. This additional strengthening is designed to create a more\n stable underlying platform through the section that commonly carries\n greater body weight.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-feature-row\"\u003e\n\n \u003cdiv class=\"sh-feature-number\"\u003e03\u003c\/div\u003e\n\n \u003ch3\u003eDeep Cloud-Top Construction\u003c\/h3\u003e\n\n \u003cp\u003e\n The elevated Deep Cloud-Top adds a substantial cushioned section above\n the main spring system. In the Firm configuration, it softens the\n initial contact without removing the mattress’s stable overall\n character.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-feature-row\"\u003e\n\n \u003cdiv class=\"sh-feature-number\"\u003e04\u003c\/div\u003e\n\n \u003ch3\u003eControlled Firm Response\u003c\/h3\u003e\n\n \u003cp\u003e\n The Firm comfort profile limits excessive compression through the\n upper section and helps the sleeper remain more on top of the mattress\n than on the Medium or Plush versions.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-feature-row\"\u003e\n\n \u003cdiv class=\"sh-feature-number\"\u003e05\u003c\/div\u003e\n\n \u003ch3\u003eKülKōte Temperature Technology\u003c\/h3\u003e\n\n \u003cp\u003e\n KülKōte is designed to absorb, store and release excess heat energy as\n conditions around the sleeping surface change. It forms part of the\n mattress’s overall temperature-management construction.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-feature-row\"\u003e\n\n \u003cdiv class=\"sh-feature-number\"\u003e06\u003c\/div\u003e\n\n \u003ch3\u003eNatural Wool Quilt\u003c\/h3\u003e\n\n \u003cp\u003e\n Wool fibre contributes surface softness and forms part of the\n mattress’s breathability and moisture-management construction.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-feature-row\"\u003e\n\n \u003cdiv class=\"sh-feature-number\"\u003e07\u003c\/div\u003e\n\n \u003ch3\u003eDryTech Fabric\u003c\/h3\u003e\n\n \u003cp\u003e\n DryTech fabric is designed to assist with moisture management close to\n the sleeping surface and complement the wool comfort layer above the\n support system.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-feature-row\"\u003e\n\n \u003cdiv class=\"sh-feature-number\"\u003e08\u003c\/div\u003e\n\n \u003ch3\u003eAustralian Manufacturing\u003c\/h3\u003e\n\n \u003cp\u003e\n The M402 is manufactured in Australia and is supplied with a ten-year\n manufacturer warranty, subject to SleepMaker’s applicable care and\n warranty conditions.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003c\/section\u003e\n\n \u003csection class=\"sh-comfort-profile\"\u003e\n\n \u003cdiv\u003e\n\n \u003cp class=\"sh-section-kicker\"\u003e\n Comfort Guide\n \u003c\/p\u003e\n\n \u003ch2\u003eHow does the M402 Firm feel?\u003c\/h2\u003e\n\n \u003cp\u003e\n The M402 Firm sits towards the more supportive end of the comfort\n range. The Deep Cloud-Top creates noticeable surface cushioning, but\n the overall response remains stable, controlled and less compressive\n than the Medium and Plush versions.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-comfort-scale\"\u003e\n\n \u003cdiv class=\"sh-scale-labels\"\u003e\n \u003cspan\u003ePlush\u003c\/span\u003e\n \u003cspan\u003eMedium\u003c\/span\u003e\n \u003cspan\u003eFirm\u003c\/span\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-scale-track\"\u003e\n \u003cdiv class=\"sh-scale-fill\" style=\"width:84%;\"\u003e\u003c\/div\u003e\n \u003cdiv class=\"sh-scale-marker\" style=\"left:84%;\"\u003e\u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-scale-result\"\u003e\n Reinforced Firm Deep Cloud-Top Support\n \u003c\/div\u003e\n\n \u003c\/div\u003e\n\n \u003c\/section\u003e\n\n \u003csection class=\"sh-specifications\"\u003e\n\n \u003cdiv class=\"sh-specifications-header\"\u003e\n\n \u003ch2\u003eProduct Specification\u003c\/h2\u003e\n\n \u003cspan\u003eMiracoil Advance M402 Firm\u003c\/span\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eComfort description\u003c\/span\u003e\n \u003cstrong\u003eFirm\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eComfort-top design\u003c\/span\u003e\n \u003cstrong\u003eDeep Cloud-Top\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eMattress construction\u003c\/span\u003e\n \u003cstrong\u003eContinuous-Coil Spring Mattress\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eSupport system\u003c\/span\u003e\n \u003cstrong\u003eMiracoil Advance 5-Zone Support\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eCentral reinforcement\u003c\/span\u003e\n \u003cstrong\u003eKevlar Powerband\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eExpected mattress response\u003c\/span\u003e\n \u003cstrong\u003eFirm, Stable and Responsive\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eTemperature technology\u003c\/span\u003e\n \u003cstrong\u003eKülKōte\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eNatural comfort material\u003c\/span\u003e\n \u003cstrong\u003eWool Quilt\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eSurface fabric\u003c\/span\u003e\n \u003cstrong\u003eDryTech Fabric\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eCountry of manufacture\u003c\/span\u003e\n \u003cstrong\u003eAustralia\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eAvailable sizes\u003c\/span\u003e\n \u003cstrong\u003e\n Single, Long Single, King Single, Double, Queen and King\n \u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-spec-row\"\u003e\n \u003cspan\u003eManufacturer warranty\u003c\/span\u003e\n \u003cstrong\u003e10 Years\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003c\/section\u003e\n\n \u003csection class=\"sh-sleeper-panel\"\u003e\n\n \u003cdiv\u003e\n\n \u003cp class=\"sh-editorial-label\"\u003e\n Who May Prefer the M402 Firm?\n \u003c\/p\u003e\n\n \u003ch2\u003eFor sleepers wanting stable support with measured top cushioning\u003c\/h2\u003e\n\n \u003cp\u003e\n The M402 Firm may suit customers who want to feel supported more on\n top of the mattress but still appreciate the cushioned contact created\n by a Deep Cloud-Top.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-sleeper-points\"\u003e\n\n \u003cdiv class=\"sh-sleeper-point\"\u003e\n Sleepers who prefer reduced surface sink\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-sleeper-point\"\u003e\n Back and some stomach sleepers seeking a stable spring surface\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-sleeper-point\"\u003e\n Customers who find Medium or Plush mattresses too accommodating\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-sleeper-point\"\u003e\n Sleepers wanting traditional spring responsiveness with extra reinforcement\n \u003c\/div\u003e\n\n \u003c\/div\u003e\n\n \u003c\/section\u003e\n\n \u003csection class=\"sh-practical-info\"\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eM402 Firm vs M302 Medium\u003c\/h2\u003e\n\n \u003cp\u003e\n The M402 Firm provides a more stable and less compressive surface than\n the M302 Medium.\n \u003c\/p\u003e\n\n \u003cp\u003e\n The M402 also adds Kevlar Powerband reinforcement and a deeper\n Cloud-Top configuration, while the M302 Medium focuses on a more\n balanced and broadly adaptable comfort level.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eFirm vs Medium\u003c\/h2\u003e\n\n \u003cp\u003e\n The M402 Firm provides less surface compression and a stronger initial\n sense of stability than the M402 Medium.\n \u003c\/p\u003e\n\n \u003cp\u003e\n Medium may suit customers wanting a more forgiving balance of\n cushioning and support. Firm may suit customers prioritising reduced\n sink and stronger surface resistance.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eFirm vs Plush\u003c\/h2\u003e\n\n \u003cp\u003e\n The Firm version allows substantially less compression through the\n upper comfort section than the Plush model.\n \u003c\/p\u003e\n\n \u003cp\u003e\n Plush focuses on deeper cushioning and softer body contact, while Firm\n focuses on stability and controlled support.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eWhat Does Kevlar Powerband Do?\u003c\/h2\u003e\n\n \u003cp\u003e\n The Kevlar Powerband is an additional reinforcement component through\n the central section of the mattress.\n \u003c\/p\u003e\n\n \u003cp\u003e\n It strengthens the supporting platform but should not be interpreted\n as making the mattress indestructible or preventing all normal wear.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eContinuous Coil vs Pocket Spring\u003c\/h2\u003e\n\n \u003cp\u003e\n The Miracoil Advance system uses a connected continuous-coil\n construction rather than individually enclosed pocket springs.\n \u003c\/p\u003e\n\n \u003cp\u003e\n Continuous-coil mattresses generally feel more connected and\n responsive, while pocket springs respond more independently across the\n sleeping surface.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eUnderstanding 5-Zone Support\u003c\/h2\u003e\n\n \u003cp\u003e\n Five-zone construction means the spring system uses different support\n responses through the length of the mattress instead of one identical\n feel from head to foot.\n \u003c\/p\u003e\n\n \u003cp\u003e\n The perceived effect of each zone will vary according to body weight,\n height, sleeping position and where the sleeper rests on the mattress.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eDeep Cloud-Top vs Standard Cloud-Top\u003c\/h2\u003e\n\n \u003cp\u003e\n A Deep Cloud-Top provides a more substantial raised comfort section\n above the main spring support system.\n \u003c\/p\u003e\n\n \u003cp\u003e\n It can add more surface cushioning than a shallower top design without\n necessarily changing the mattress from Firm to Medium or Plush.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eKülKōte and Sleep Temperature\u003c\/h2\u003e\n\n \u003cp\u003e\n KülKōte is designed to absorb, store and release heat as conditions\n around the sleeping surface change.\n \u003c\/p\u003e\n\n \u003cp\u003e\n Actual sleeping temperature will still depend on room conditions,\n mattress protectors, sheets, quilts and individual sensitivity.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eWool Quilt and DryTech\u003c\/h2\u003e\n\n \u003cp\u003e\n Wool and DryTech form part of the mattress’s breathability and\n moisture-management construction.\n \u003c\/p\u003e\n\n \u003cp\u003e\n These materials do not guarantee that every sleeper will remain cool\n or dry under all environmental and bedding conditions.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003ePartner Movement\u003c\/h2\u003e\n\n \u003cp\u003e\n Because Miracoil is a connected continuous-coil system, movement can\n feel different from an independently pocketed spring mattress.\n \u003c\/p\u003e\n\n \u003cp\u003e\n Complete elimination of partner disturbance cannot be guaranteed.\n Results depend on mattress size, sleeper weight and movement.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eBed Base Requirements\u003c\/h2\u003e\n\n \u003cp\u003e\n Place the mattress on a flat, stable and suitably supportive bed base.\n Slats and centre supports should be secure, level and appropriately\n spaced.\n \u003c\/p\u003e\n\n \u003cp\u003e\n A damaged, uneven or sagging base may affect mattress comfort,\n performance and warranty eligibility.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eBefore You Order\u003c\/h2\u003e\n\n \u003cp\u003e\n Firm is a general comfort description rather than a standardised\n firmness measurement. Feel will vary according to body weight,\n sleeping position, bed base and previous mattress experience.\n \u003c\/p\u003e\n\n \u003cp\u003e\n A firmer mattress is not automatically more suitable for every\n sleeper. Customers moving from a Medium or Plush model may find the\n M402 Firm noticeably more stable and less cushioned.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eDelivery\u003c\/h2\u003e\n\n \u003cp\u003e\n Delivery availability and charges depend on mattress size, production\n availability, destination postcode and property access.\n \u003c\/p\u003e\n\n \u003cp\u003e\n Customers outside Melbourne should confirm delivery availability and\n applicable charges before ordering.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003cdiv class=\"sh-info-block\"\u003e\n\n \u003ch2\u003eMattress Care\u003c\/h2\u003e\n\n \u003cp\u003e\n Use a quality washable mattress protector and keep the mattress clean,\n dry and adequately ventilated.\n \u003c\/p\u003e\n\n \u003cp\u003e\n Rotate the mattress according to SleepMaker’s care guidance and do not\n flip it unless specifically instructed by the manufacturer.\n \u003c\/p\u003e\n\n \u003c\/div\u003e\n\n \u003c\/section\u003e\n\n \u003cdiv class=\"sh-product-disclaimer\"\u003e\n\n \u003cstrong\u003eImportant comfort note:\u003c\/strong\u003e\n This mattress uses the Miracoil Advance continuous-coil support system and\n is not a pocket spring mattress. Firm is a general comfort description\n rather than a standardised firmness measurement. Individual comfort and\n temperature experience will vary according to body weight, sleeping\n position, bedding, room conditions and the supporting bed base. This\n listing includes the mattress only unless otherwise stated.\n\n \u003c\/div\u003e\n\n\u003c\/div\u003e"}