{"product_id":"anniversary-hybrid-et","title":"Anniversary Hybrid ET","description":"\u003cdiv class=\"mattress-description\"\u003e\r\n\r\n  \u003ch2\u003eSpring Air Dura-Last Firm Mattress\u003c\/h2\u003e\r\n\r\n  \u003ch3\u003eQuick Overview\u003c\/h3\u003e\r\n  \u003cul\u003e\r\n    \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Innerspring – Heavy-Duty Performance\u003c\/li\u003e\r\n    \u003cli\u003e\n\u003cstrong\u003eFirmness:\u003c\/strong\u003e Firm\u003c\/li\u003e\r\n    \u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e Approx. 13\"\u003c\/li\u003e\r\n    \u003cli\u003e\n\u003cstrong\u003eSpecial Features:\u003c\/strong\u003e HD Soft Quilt Foam, Hand-Tufted layers, 1000 Coil Tri-Zone support, Latex layer, reinforced edge with high-density foam encasement\u003c\/li\u003e\r\n  \u003c\/ul\u003e\r\n\r\n  \u003ch3\u003eWhy You’ll Love It\u003c\/h3\u003e\r\n  \u003cp\u003eBorn from Spring Air’s \u003cstrong\u003eDura-Last\u003c\/strong\u003e performance line, this mattress is built for resilience — crafted with high-density comfort foams, a responsive latex layer, and a robust 1000-tri-zone coil system for advanced support. Whether you're a larger individual or someone who values steadfast firmness and durability, this mattress delivers. Hand-tufted for stability and long-lasting shape, it ensures you won't sag or lose loft over time.\u003c\/p\u003e\r\n\r\n  \u003ch3\u003eKey Features\u003c\/h3\u003e\r\n  \u003cul\u003e\r\n    \u003cli\u003e\n\u003cstrong\u003eHD Soft \u0026amp; Firm Quilt Foam:\u003c\/strong\u003e Dual-layer quilt foam creates a firm, yet slightly cushioning surface—offering subtle comfort without compromising support.\u003c\/li\u003e\r\n    \u003cli\u003e\n\u003cstrong\u003eLatex Comfort Layer:\u003c\/strong\u003e A resilient latex adding responsive support, pressure relief, and natural breathability.\u003c\/li\u003e\r\n    \u003cli\u003e\n\u003cstrong\u003eFirm Comfort Foam:\u003c\/strong\u003e Deep-set, high-density foam that sustains firmness throughout the body of the mattress to resist sagging.\u003c\/li\u003e\r\n    \u003cli\u003e\n\u003cstrong\u003e8\" 1000 Tri-Zone Coil Unit:\u003c\/strong\u003e Strategically zoned innerspring design provides firmer lumbar support while offering gentle transition zones at the shoulders and legs.\u003c\/li\u003e\r\n    \u003cli\u003e\n\u003cstrong\u003eHigh-Density Foam Encasement:\u003c\/strong\u003e Foam borders around the coil unit reinforce edge support—makes the entire sleep surface usable and stable.\u003c\/li\u003e\r\n    \u003cli\u003e\n\u003cstrong\u003eFirm Base Foam:\u003c\/strong\u003e Dense foundational foam supports the coil structure and ensures long-term durability.\u003c\/li\u003e\r\n    \u003cli\u003e\n\u003cstrong\u003eHand-Tufted Construction:\u003c\/strong\u003e Secure stitching throughout prevents shifting of internal layers, maintaining mattress integrity over years of use.\u003c\/li\u003e\r\n  \u003c\/ul\u003e\r\n\r\n  \u003ch3\u003eIdeal For\u003c\/h3\u003e\r\n  \u003cul\u003e\r\n    \u003cli\u003e\n\u003cstrong\u003eSleep Position:\u003c\/strong\u003e Back and stomach sleepers who prefer firm support\u003c\/li\u003e\r\n    \u003cli\u003e\n\u003cstrong\u003eSupport Needs:\u003c\/strong\u003e Heavy-set or larger individuals needing strong edge and core support\u003c\/li\u003e\r\n    \u003cli\u003e\n\u003cstrong\u003eTemperature Preference:\u003c\/strong\u003e Sleepers who favor traditional innerspring airflow with mild cushioning\u003c\/li\u003e\r\n  \u003c\/ul\u003e\r\n\r\n  \u003ch3\u003eSizes \u0026amp; Dimensions\u003c\/h3\u003e\r\n  \u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\"\u003e\r\n    \u003cthead\u003e\r\n      \u003ctr\u003e\r\n        \u003cth\u003eSize\u003c\/th\u003e\r\n        \u003cth\u003eDimensions (Approx.)\u003c\/th\u003e\r\n        \u003cth\u003eIdeal For\u003c\/th\u003e\r\n      \u003c\/tr\u003e\r\n    \u003c\/thead\u003e\r\n    \u003ctbody\u003e\r\n      \u003ctr\u003e\n\u003ctd\u003eTwin\u003c\/td\u003e\n\u003ctd\u003e38\" x 75\"\u003c\/td\u003e\n\u003ctd\u003eSolo, compact spaces\u003c\/td\u003e\n\u003c\/tr\u003e\r\n      \u003ctr\u003e\n\u003ctd\u003eTwin XL\u003c\/td\u003e\n\u003ctd\u003e38\" x 80\"\u003c\/td\u003e\n\u003ctd\u003eTaller singles, dorm rooms\u003c\/td\u003e\n\u003c\/tr\u003e\r\n      \u003ctr\u003e\n\u003ctd\u003eFull\u003c\/td\u003e\n\u003ctd\u003e54\" x 75\"\u003c\/td\u003e\n\u003ctd\u003eSolo adults, guest rooms\u003c\/td\u003e\n\u003c\/tr\u003e\r\n      \u003ctr\u003e\n\u003ctd\u003eQueen\u003c\/td\u003e\n\u003ctd\u003e60\" x 80\"\u003c\/td\u003e\n\u003ctd\u003eCouples, master bedrooms\u003c\/td\u003e\n\u003c\/tr\u003e\r\n      \u003ctr\u003e\n\u003ctd\u003eKing\u003c\/td\u003e\n\u003ctd\u003e76\" x 80\"\u003c\/td\u003e\n\u003ctd\u003eCouples needing extra space\u003c\/td\u003e\n\u003c\/tr\u003e\r\n      \u003ctr\u003e\n\u003ctd\u003eCal King\u003c\/td\u003e\n\u003ctd\u003e72\" x 84\"\u003c\/td\u003e\n\u003ctd\u003eTaller couples, spacious suites\u003c\/td\u003e\n\u003c\/tr\u003e\r\n    \u003c\/tbody\u003e\r\n  \u003c\/table\u003e\r\n\r\n  \u003ch3\u003eSpecifications\u003c\/h3\u003e\r\n  \u003cul\u003e\r\n    \u003cli\u003eHeavy-Duty Performance Line\u003c\/li\u003e\r\n    \u003cli\u003eApprox. 13\" Total Height\u003c\/li\u003e\r\n    \u003cli\u003eHD Soft Quilt Foam \u0026amp; Firm Quilt Foam Layers\u003c\/li\u003e\r\n    \u003cli\u003eLatex Comfort Layer\u003c\/li\u003e\r\n    \u003cli\u003eFirm Comfort Foam\u003c\/li\u003e\r\n    \u003cli\u003e8\" 1000 Tri-Zone Innerspring System\u003c\/li\u003e\r\n    \u003cli\u003eHigh-Density Foam Encased Edges\u003c\/li\u003e\r\n    \u003cli\u003eFirm Base Foam Foundation\u003c\/li\u003e\r\n    \u003cli\u003eHandmade and Hand-Tufted for structural longevity\u003c\/li\u003e\r\n    \u003cli\u003eWarranty: Typically 10 to 15-year limited coverage (varies by retailer)\u003c\/li\u003e\r\n  \u003c\/ul\u003e\r\n\r\n  \u003ch3\u003eFAQs\u003c\/h3\u003e\r\n  \u003cp\u003e\u003cstrong\u003eQ: Will this mattress soften over time?\u003c\/strong\u003e\u003cbr\u003e\r\n  A: Very little. High-density comfort layers and hand-tufted construction help maintain firmness and shape over years of use, resisting sagging.\u003c\/p\u003e\r\n\r\n  \u003cp\u003e\u003cstrong\u003eQ: Is there good edge support for sitting or sleeping near the edge?\u003c\/strong\u003e\u003cbr\u003e\r\n  A: Yes. The high-density foam encasement reinforces the perimeter, allowing you to utilize the full sleep surface without roll-off.\u003c\/p\u003e\r\n\r\n  \u003cp\u003e\u003cstrong\u003eQ: Does it sleep hot or cool?\u003c\/strong\u003e\u003cbr\u003e\r\n  A: While there’s no active cooling gel, the latex layer and innerspring design facilitate decent airflow—cooler than an all-foam mattress, yet pleasantly firm and supportive.\u003c\/p\u003e\r\n\r\n  \u003cp\u003e\u003cstrong\u003eQ: Is this made in the USA?\u003c\/strong\u003e\u003cbr\u003e\r\n  A: Yes, Spring Air's Dura-Last models are produced in U.S. facilities.\u003c\/p\u003e\r\n\r\n  \u003ch3\u003eCall to Action\u003c\/h3\u003e\r\n  \u003cp\u003eDiscover unmatched durability and firm support with the Spring Air Dura-Last Firm mattress—engineered to stand the test of time and support every body type. Available now at \u003cstrong\u003eSleep On Mattress\u003c\/strong\u003e.\u003c\/p\u003e\r\n\r\n  \u003ch3\u003eShort Description\u003c\/h3\u003e\r\n  \u003cp\u003eThe Spring Air Dura-Last Firm mattress blends dense foams, a durable tri-zone 1000-coil unit, and resilient latex for steadfast support and long-lasting comfort. Hand-tufted and built tough, it’s tailored for sleepers seeking solid, dependable firmness. Available at \u003cstrong\u003eSleep On Mattress\u003c\/strong\u003e.\u003c\/p\u003e\r\n\r\n  \u003ch3\u003eProduct Keywords\u003c\/h3\u003e\r\n  \u003cul\u003e\r\n    \u003cli\u003eHeavy-duty firm mattress\u003c\/li\u003e\r\n    \u003cli\u003eTri-zone coil support\u003c\/li\u003e\r\n    \u003cli\u003eLatex innerspring mattress\u003c\/li\u003e\r\n    \u003cli\u003eHand-tufted innerspring\u003c\/li\u003e\r\n    \u003cli\u003eDurable firm mattress\u003c\/li\u003e\r\n  \u003c\/ul\u003e\r\n\r\n  \u003ch3\u003eTags\u003c\/h3\u003e\r\n  \u003cul\u003e\r\n    \u003cli\u003e#DuraLastFirm\u003c\/li\u003e\r\n    \u003cli\u003e#HeavyDutySupport\u003c\/li\u003e\r\n    \u003cli\u003e#LatexHybrid\u003c\/li\u003e\r\n    \u003cli\u003e#FirmInnerspring\u003c\/li\u003e\r\n    \u003cli\u003e#HandTufted\u003c\/li\u003e\r\n    \u003cli\u003e#EdgeSupport\u003c\/li\u003e\r\n    \u003cli\u003e#SleepOnMattress\u003c\/li\u003e\r\n    \u003cli\u003e#DurableMattress\u003c\/li\u003e\r\n    \u003cli\u003e#BackSleeper\u003c\/li\u003e\r\n    \u003cli\u003e#StomachSleeper\u003c\/li\u003e\r\n  \u003c\/ul\u003e\r\n\r\n\u003c\/div\u003e\r\n","brand":"Upper Midwest Sleep","offers":[{"title":"Twin","offer_id":41288619786304,"sku":null,"price":1049.0,"currency_code":"USD","in_stock":false},{"title":"TXL","offer_id":41288619819072,"sku":null,"price":1149.0,"currency_code":"USD","in_stock":false},{"title":"Full","offer_id":41288619851840,"sku":null,"price":1499.0,"currency_code":"USD","in_stock":false},{"title":"Queen","offer_id":41288619884608,"sku":null,"price":1599.0,"currency_code":"USD","in_stock":false},{"title":"King","offer_id":41288619917376,"sku":null,"price":1999.0,"currency_code":"USD","in_stock":false},{"title":"Cal King","offer_id":41288619950144,"sku":null,"price":1999.0,"currency_code":"USD","in_stock":false},{"title":"Split Cal King","offer_id":41288619982912,"sku":null,"price":2298.0,"currency_code":"USD","in_stock":false},{"title":"Split King","offer_id":41288620015680,"sku":null,"price":2298.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/shop.sleeponmattress.com\/products\/anniversary-hybrid-et","provider":"Sleep On Mattress","version":"1.0","type":"link"}