Build your own · Smooth Top models

Build your own Sleep Number® comfort layer rebuild

Pick your size, then choose a new Smooth Top Shell, comfort foam (stack up to 3 layers) and foam rails. See your total as you go.

Start your rebuild →
9 products
Sale
Smooth top replacement cover for Sleep Number beds with stretch knit fabric, full mattress view
Stretch knit Sleep Number mattress cover replacement showing zippered top design and side panel
Smooth Top Shell | Premium Single-Zipper Replacement Cover for Sleep Number Beds | Stretch Knit Top for Newer Models | Custom Fit for Your Mattress Height (8"–15" Options) from $22500 Regular price $30000 Save 25%
Sale
Complete set of four replacement foam rails for Sleep Number beds — both sides plus head and foot
Corner view of the complete foam rail set showing the firmer perimeter edge support for Sleep Number beds
Complete Set of Foam Rails - Center Rail Option - Firmer Perimeter Edge Support from $26900 Regular price $35800 Save 25%
Sale
Pair of replacement foam side rails for Sleep Number beds from Magic Sleeper, higher-density firmer edge support
Replacement foam side rails for a Sleep Number bed, shown as a matched pair for both sides of the mattress
Foam Side Rails Sale price $16900 Regular price $22500 Save 25%
Sale
Close-up of a replacement medium regular foam corner showing the open-cell structure
Hand pressing into replacement medium regular foam to show its cushioning feel
Replacement Medium Regular Foam (Most Comparable Feel To Sleep Number's Regular Foam) from $13900 Regular price $18500 Save 25%
Sale
Corner of replacement gel memory foam for Sleep Number beds, cooler-sleeping 4 lb density with open-cell texture
Sleep Number replacement gel memory foam, a breathable medium-firm comfort layer
Replacement Gel Memory Foam from $19900 Regular price $26500 Save 25%
Sale
Corner detail of the natural Dunlop latex replacement foam showing the molded pinhole aeration and open-cell texture
Hand pressing into the medium natural latex replacement foam to show its soft, springy feel
Replacement Medium Latex Foam from $13800 Regular price $18400 Save 25%
Sale
Detail of convoluted egg crate foam peaks for a Sleep Number comfort layer
Top-down view of blue egg crate foam replacement topper for Sleep Number beds
Egg Crate Convoluted Foam from $17900 Regular price $23900 Save 25%
Sale
Close-up of a replacement firm regular foam corner showing the open-cell structure
Hand pressing into replacement firm regular foam to show its supportive, firm feel
Replacement Firm Regular Foam (Firmer Feel Than Sleep Number's Regular Foam) from $13900 Regular price $18500 Save 25%
Sale
Close-up of a replacement soft regular foam corner showing the open-cell structure
Hand pressing into replacement soft regular foam to show its plush, cushioning feel
Replacement Soft Regular Foam (Softer Feel Than Sleep Number's Regular Foam) from $13900 Regular price $18500 Save 25%
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