Sleep Number® Pillowology® Inner Core: Create Your Perfect PillowSM Step 2. Whether you love the softness of down, or the pressure-relieving support of memory foam, now there's a way to choose precisely what you want in your perfect pillow. Click to see how easy it is to Create Your Perfect Pillow. The inner pillow support core provides the firmness that's perfect for you, from soft to extra-firm. Or, choose more than one core and change it out based on your needs. Pillow[ology]® Inner Cores are made in USA of imported materials.
NOTE: Memory foam contains polyurethane.
Warranty: 5-Year Limited Warranty