{"product_id":"sapphire-lake-medium-8-gelcool™-innerspring-mattress","title":"Sapphire Lake Medium 8\" GelCool™ Innerspring Mattress","description":"\u003cp\u003eThe Sapphire Lake sits right in the sweet spot of the comfort spectrum — medium feel, genuine innerspring support, and gel-cooling technology — all in an 8-inch profile that won't overwhelm your bed frame. The ComfortKnit™ quilted surface rests over Gel Cooling Foam and ComfortFirm™ Foam upholstery, providing that familiar \"just right\" feel: neither too stiff nor too soft. Underneath, the Essential Spring 390 coil system with 360° Foam Encasement handles motion isolation and edge support so both partners sleep undisturbed. The Sapphire Lake is an excellent choice for anyone replacing a worn-out mattress and wanting real quality without a luxury price.\u003c\/p\u003e","brand":"Jamison","offers":[{"title":"Twin","offer_id":48574813569279,"sku":null,"price":230.0,"currency_code":"USD","in_stock":true},{"title":"Full","offer_id":48574813602047,"sku":null,"price":297.5,"currency_code":"USD","in_stock":true},{"title":"Queen","offer_id":48574813634815,"sku":null,"price":347.5,"currency_code":"USD","in_stock":true},{"title":"King","offer_id":48574813667583,"sku":null,"price":447.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0806\/1393\/3311\/files\/SapphireLake.png?v=1779571342","url":"https:\/\/mattresscarnival.com\/products\/sapphire-lake-medium-8-gelcool%e2%84%a2-innerspring-mattress","provider":"Mattress Carnival","version":"1.0","type":"link"}