{"product_id":"serta-mattresses-split-california-king-cobalt-calm-extra-firm-mattress-set-split-california-king","title":"Serta Cobalt Calm Extra Firm Mattress Set (Split California King)","description":"This Cobalt Calm Extra Firm mattress set by Serta Perfect Sleeper features CoolFeel™ Fabric with an Antimicrobial Mattress Protection®, Fiber layer, two layers of Serta® Support 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":51941314396452,"sku":"Cobalt Calm Extra Firm Mattress Set (Split California King)","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0810\/5548\/2148\/files\/805725_1.jpg?v=1768866507","url":"https:\/\/www.kluvers.com\/products\/serta-mattresses-split-california-king-cobalt-calm-extra-firm-mattress-set-split-california-king","provider":"Kluver's Appliance \u0026 Home Furniture","version":"1.0","type":"link"}