Designed exclusively for Sleep Number 360® and Sleep Number® smart beds when used with a FlexFit smart adjustable base or Sleep Number integrated base. Zippered cover fully encases mattress and hose openings. Soft-knit fabric is a silky-soft polyester on the surface. The reverse side of the mattress encasement features a waterproof, scientifically-tested polyurethane bond shown to block bed bugs, dust mites and allergens so you can sleep peacefully. Logic™ Label takes the guesswork out of where to start making your bed.Our Full Single Chamber size is designed for our single air chamber Full beds.Our Queen Single Chamber size is designed for our single air chamber Queen beds. Our Queen size is designed for our double air chamber Queen beds. Compatible with the below bed configurations: Sleep Number 360® smart bed and integrated baseSleep Number 360® smart bed and FlexFit™ smart adjustable baseSleep Number® smart bed and Integrated base A retainer bar will be required for the below bed configuration. This will ensure maximum protection of your Sleep Number® smart bed and can be purchased separately here. Sleep Number® smart bed and FlexFit™ smart adjustable base Learn about the difference between Mattress Pads & Mattress Toppers.