{"product_id":"sound-sleep-3331-katrina-firm-spring-air-twin-mattress","title":"Sound Sleep 3331 Katrina Firm Spring Air Twin Mattress","description":"\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eExperience the legendary quality of Spring Air’s Back Supporter line, known for advanced coil technology and exceptional back support since 1926. Expertly crafted by Sound Sleep Products in Lacey, Washington, the Katrina Extra Firm brings that time-honored comfort and durability to your bedroom with modern materials and precision engineering.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eThe \u003cstrong\u003eBack Supporter Katrina Extra Firm (Model #3331)\u003c\/strong\u003e is built for sleepers who want maximum support and a truly firm sleeping surface. Ideal for back and stomach sleepers or anyone who prefers less sink and strong spinal alignment, this hybrid delivers the signature Spring Air “just right” feeling with excellent edge-to-edge support and durability.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003ePrecision Hybrid Construction\u003c\/h3\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eThis extra-firm mattress features an \u003cstrong\u003e8\" 3-Zone Encased Coil\u003c\/strong\u003e system with foam encasement for zoned lumbar support, motion isolation, and long-lasting performance. The comfort layers are engineered for a structured, supportive feel with just enough contouring:\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\" Soft Quilt Foam\u003c\/strong\u003e + \u003cstrong\u003e1\" Firm Quilt Foam\u003c\/strong\u003e — Layered quilting for initial comfort and support\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.5\" HD Super Soft Memory Foam\u003c\/strong\u003e — Gentle contouring and pressure relief\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7\/8\" Firm Foam\u003c\/strong\u003e + \u003cstrong\u003e7\/8\" Medium Plush Foam\u003c\/strong\u003e + \u003cstrong\u003e7\/8\" Firm Foam\u003c\/strong\u003e — Balanced transition layers for firm, responsive support\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8\" 3-Zone Encased Coil + Foam Encasement\u003c\/strong\u003e — Zoned support and edge stability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7\/8\" Firm Support Foam\u003c\/strong\u003e — Solid, durable foundation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"auto\"\u003eWhy You’ll Love the Katrina Extra Firm\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtra firm feel\u003c\/strong\u003e with outstanding spinal alignment and back support\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure relief\u003c\/strong\u003e from memory foam without sacrificing firmness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrong edge support\u003c\/strong\u003e from the foam-encased coil system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable, responsive\u003c\/strong\u003e hybrid construction built to last\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in the USA\u003c\/strong\u003e with CertiPUR-US certified foams\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003eProudly manufactured in the Pacific Northwest by Sound Sleep Products — a trusted local producer with decades of expertise.\u003c\/p\u003e\n\u003cp dir=\"auto\" style=\"white-space: pre-wrap;\"\u003e\u003cstrong\u003eAvailable Sizes:\u003c\/strong\u003e Twin, Twin XL, Full, Queen, and King\u003c\/p\u003e","brand":"Sound Sleep Products Inc.","offers":[{"title":"Default Title","offer_id":48480242172096,"sku":"3331 Twin","price":549.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/3861\/3696\/files\/Claid_034819081b464706b26edc20e3fb351e.webp?v=1781908756","url":"https:\/\/priceco.org\/products\/sound-sleep-3331-katrina-firm-spring-air-twin-mattress","provider":"PriceCo","version":"1.0","type":"link"}