{"product_id":"smooth-top-shell-split-head-flex-top-sleep-number","title":"Split Head Flex Top Smooth Top Shell | Single-Zipper Stretch Knit Replacement Cover for Sleep Number FlexTop King Beds | Custom-Fit Heights 8\"–15\"","description":"\u003ch4\u003eSplit Head Flex Top Replacement Cover for Sleep Number FlexTop Beds\u003c\/h4\u003e\n\u003cp\u003eThis is the smooth top stretch knit replacement cover built specifically for \u003cstrong\u003eSplit Head Flex Top\u003c\/strong\u003e Sleep Number beds — the FlexTop King and FlexTop California King configurations where the head of the mattress is split into two independent halves so each sleeper can raise or lower their side on a FlexFit adjustable base. If your current Flex Top cover is sagging, stained, torn, or has lost its stretch, this direct-fit shell restores the look and feel of the newer Sleep Number smooth knit top.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCustom-fit to your exact mattress height.\u003c\/strong\u003e Flex Top Sleep Number beds range from 8\" to 15\" tall depending on model and any added layers. Choose the height that matches your bed today and we build the cover to fit — no bunching, no gaps at the zipper, and a clean split down the head that matches your mattress.\u003c\/p\u003e\n\u003ch4\u003eWhat Is a Split Head Flex Top Cover?\u003c\/h4\u003e\n\u003cp\u003eA Split Head Flex Top cover is a one-piece replacement encasement for a King or California King Sleep Number bed whose upper third (the head end) is divided into two separate sections. This split lets each side of the bed articulate independently on an adjustable base while the foot two-thirds stays joined as a single platform. Our cover zips over the full mattress with the head split sewn in to match.\u003c\/p\u003e\n\u003ch4\u003eCompatible With These Flex Top Sleep Number Models\u003c\/h4\u003e\n\u003cp\u003eDesigned to fit Sleep Number 360 Smart Bed FlexTop King and FlexTop California King models from approximately 2020 through early 2026, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClassic Series:\u003c\/strong\u003e c2, c4 Smart Beds (FlexTop)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance Series:\u003c\/strong\u003e p5, p6, pSE Smart Beds (FlexTop)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInnovation Series:\u003c\/strong\u003e i8, i10, iLE Smart Beds (FlexTop)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemory Foam Series:\u003c\/strong\u003e m7 Smart Bed (FlexTop)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClimate Series:\u003c\/strong\u003e ClimateCool (2024) and Climate360 (2022) FlexTop\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNot sure of your configuration? If the head of your King or Cal King mattress splits into two sections that move independently, you have a Split Head Flex Top.\u003c\/p\u003e\n\u003ch4\u003eWhat Makes This Cover Different\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSewn-in head split\u003c\/strong\u003e matching the FlexTop King \/ Cal King two-section design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStretch knit top fabric\u003c\/strong\u003e that moves with the air chambers instead of bunching\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable woven side panels\u003c\/strong\u003e in light gray, matching newer Sleep Number borders\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-duty single zipper\u003c\/strong\u003e with a smooth-pull tab\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReinforced corner seams\u003c\/strong\u003e at every stress point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoice of air hose openings\u003c\/strong\u003e — at the head or on the sides, to match your pump routing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom-sewn to your mattress height\u003c\/strong\u003e (8\"–15\")\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cblockquote\u003e\n\u003cp\u003eNeed a standard (non-split) size instead? Twin through Cal King smooth top covers are on our \u003ca href=\"https:\/\/www.magicsleepermattress.com\/products\/smooth-top-shell-stretch-knit-replacement-cover-sleep-number\" title=\"Smooth Top Shell\"\u003e\u003cstrong\u003eSmooth Top Shell\u003c\/strong\u003e\u003c\/a\u003e page. For older quilted or Euro top beds, see the \u003ca href=\"https:\/\/www.magicsleepermattress.com\/products\/euro-top-shell\" title=\"Euro Top Shell\"\u003e\u003cstrong\u003eEuro Top Shell\u003c\/strong\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003ch4\u003eAir Hose Openings\u003c\/h4\u003e\n\u003cp\u003eChoose \u003cstrong\u003eAt the Head\u003c\/strong\u003e if your air hoses exit near the top of the mattress, or \u003cstrong\u003eOn The Sides\u003c\/strong\u003e if they run out the sides toward the pump. This keeps the hoses routed cleanly without stressing the zipper.\u003c\/p\u003e\n\u003ch4\u003eAvailable Heights\u003c\/h4\u003e\n\u003cp\u003e8\", 9\", 10\", 11\", 12\", 13\", 14\", and 15\" — select your size at checkout.\u003c\/p\u003e","brand":"Magic Sleeper","offers":[{"title":"8\" \/ At the Head","offer_id":55218710839587,"sku":null,"price":499.0,"currency_code":"USD","in_stock":true},{"title":"9\" \/ At the Head","offer_id":55218710872355,"sku":null,"price":499.0,"currency_code":"USD","in_stock":true},{"title":"10\" \/ At the Head","offer_id":55218710905123,"sku":null,"price":499.0,"currency_code":"USD","in_stock":true},{"title":"11\" \/ At the Head","offer_id":55218710937891,"sku":null,"price":499.0,"currency_code":"USD","in_stock":true},{"title":"12\" \/ At the Head","offer_id":55218710970659,"sku":null,"price":499.0,"currency_code":"USD","in_stock":true},{"title":"13\" \/ At the Head","offer_id":55218711003427,"sku":null,"price":499.0,"currency_code":"USD","in_stock":true},{"title":"14\" \/ At the Head","offer_id":55218711036195,"sku":null,"price":499.0,"currency_code":"USD","in_stock":true},{"title":"15\" \/ At the Head","offer_id":55218711068963,"sku":null,"price":499.0,"currency_code":"USD","in_stock":true},{"title":"8\" \/ On The Sides","offer_id":55218711101731,"sku":null,"price":499.0,"currency_code":"USD","in_stock":true},{"title":"9\" \/ On The Sides","offer_id":55218711134499,"sku":null,"price":499.0,"currency_code":"USD","in_stock":true},{"title":"10\" \/ On The Sides","offer_id":55218711167267,"sku":null,"price":499.0,"currency_code":"USD","in_stock":true},{"title":"11\" \/ On The Sides","offer_id":55218711200035,"sku":null,"price":499.0,"currency_code":"USD","in_stock":true},{"title":"12\" \/ On The Sides","offer_id":55218711232803,"sku":null,"price":499.0,"currency_code":"USD","in_stock":true},{"title":"13\" \/ On The Sides","offer_id":55218711265571,"sku":null,"price":499.0,"currency_code":"USD","in_stock":true},{"title":"14\" \/ On The Sides","offer_id":55218711298339,"sku":null,"price":499.0,"currency_code":"USD","in_stock":true},{"title":"15\" \/ On The Sides","offer_id":55218711331107,"sku":null,"price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/5696\/2595\/files\/sleep-number-flextop-split-head-smooth-top-replacement-cover.jpg?v=1781123811","url":"https:\/\/www.magicsleepermattress.com\/products\/smooth-top-shell-split-head-flex-top-sleep-number","provider":"Magic Sleeper","version":"1.0","type":"link"}