{"product_id":"serta-mattresses-twin-xl-cobalt-calm-firm-pillow-top-mattress-set-twin-xl","title":"Serta Cobalt Calm Firm Pillow Top Mattress Set (Twin XL)","description":"The Cobalt Calm Firm Pillow Top mattress set by Serta Perfect Sleeper features the CoolFeel™ Fabric with an Antimicrobial Mattress Protector, Fiber layer, PillowSoft™ Aire, Serta® Support Foam, a layer of Cushion Quilt™ Foam, CoolTwist® Gel Memory Foam, Serta® Support Foam, and the 3-zoned Coil System with Serta® Balanced Support Foam. This mattress will bring all the support and comfort that you need to get a good night's sleep.","brand":"Serta","offers":[{"title":"Default Title","offer_id":51941304467748,"sku":"Cobalt Calm Firm Pillow Top Mattress Set (Twin XL)","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0810\/5548\/2148\/files\/774998_1.jpg?v=1768866324","url":"https:\/\/www.kluvers.com\/products\/serta-mattresses-twin-xl-cobalt-calm-firm-pillow-top-mattress-set-twin-xl","provider":"Kluver's Appliance \u0026 Home Furniture","version":"1.0","type":"link"}