Our True Temp™ sheets with 37.5® Technology absorb excess heat to cool you and release it to warm you for comfortable sleep all night long. Pillowcases included.
ExactFit™ sheet design allows our sheets to stretch and move with our unique smart beds as they flex, and recover between uses, for a smooth, perfect fit.
With our SmartFit™ design, sheets stay secure all night. A fully elasticized edge, elastic corner seams and anchor bands keep fitted sheets in place.
Logic™ Labels on Sleep Number® bedding make it easy to see which way your bedding fits, right from the start. Simply align the labels at the bottom right corner for easy bed-making.
Our sheets are designed to fit any mattress up to 15″ mattress thickness.
Includes:
- One oversized flat sheet
- One fitted sheet (Split King and Split California King sets contain two Twin Long fitted sheets)
- Two pillowcases
Learn more about how to find the right sheet or watch our how-to videos.
Discover how you can sleep at your Ideal Temperature with our True Temp™ Bedding.
Do you have a King size FlexTop or Split bed?
Our FlexTopKing bed divides at the head of the bed. This enables independent raising and lowering of the head of the bed. Our Split King divides down the entire length of the bed. This enables each side of the bed to raise and lower head or feet simultaneously.
Check our mattress size chart to compare bed sizes.
Sheet sizes:
Fitted: W x L x H
Queen: 58″ x 78″ x 15″
California King: 70″ x 80″ x 15″
Split California King: (2) 34″ x 80″ x 15″
FlexTop California King: 70″ x 80″ x 15″
Flat: L x W
Queen: 100″ x 94″
California King: 104″ x 106″
Split California King: 104″ x 106″
FlexTop California King: 104″ x 106″
Pillowcases: L x W
Standard: 30″ x 21″
Fabric
Blend of 76% cotton, 22% 37.5® polyester and 2% spandex. 300-thread-count sateen weave. Made in China.
Washing
Machine wash gentle cycle in cold water with mild detergent.
Do not pour detergent directly on sheets and avoid chlorine bleach or detergents with added bleach or whiteners.
Do not use fabric softener, overload washing machine, or wash with non-bedding items. Doing so increases friction which can break down fabrics or cause pilling.
Drying
Tumble dry on low heat or line dry.
Remove from dryer while slightly damp to prevent wrinkles. Do not use dryer sheets as they may weaken and break down the yarns.
Storage
Store sheets in a cool, dry, well-ventilated area. Do not store in plastic containers as this may cause fabric to discolor.



