c4 mattress
FREE Delivery + Save 10% ALL bases^
$1,709.10Regular price: $1,899
Options shown. Prices higher in AK & HI.
Rest easy with breathable, cushioning support.
Feel comfortably supported in any sleeping position with a breathable layer that uniquely conforms to you.
- Ceramic gel layer draws heat away for breathable comfort
- Feel comfortably supported with a layer that conforms to you
- Contours to your body to relieve pressure points
- Adjustable comfort and firmness on each side—your Sleep Number® setting
- Responds to your movements and automatically adjusts firmness on each side
- Shows sleep quality—your SleepIQ® score—with personal insights for better sleep
c4 mattressCOMFORT GUIDE
- Pressure relief
- Support
- Cooling
- Comfort Layer
3 inches
- Mattress Height
9 inches
Recommended for you
Compare Classic Series smart beds
Select Size:

Experience Sleep Number®
FAQ
CertiPUR-US® certified foams meet rigorous standards for content, emissions and durability, and are analyzed by independent, accredited testing laboratories.
*May temporarily relieve common mild snoring in otherwise healthy adults. Available with FlexTop® King and Split King mattresses.