Outlast Temperature Regulating Sheet Set


$179.99 - $269.99 $129.99 - $209.99

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Additional Information

It’s not too hot. It’s not too cold... It’s just right.

Outlast technology, originally developed for NASA, utilizes change phase materials (PCM) that absorb, store and release heat for optimal thermal comfort. Outlast technology buffers against temperature fluctuations, helping to keep your personal microclimate steady and comfortable. With a super-soft sateen weave, these sheets will keep your bed comfortable and luxurious. The tight-knit weave also repels traditional allergens such as dust mites, which can disrupt sensitive sleepers.

Outlast technology doesn’t just wick moisture away from the body—it helps to proactively manage sweat before it begins. 

When you overheat, your body naturally releases excess heat and sweats to cool the skin. Outlast helps alleviate these spikes in skin temperature that cause sleep disturbances by absorbing and storing the excess heat. As you cool, the stored heat is released back to the body to keep you at the optimal temperature. This cycle continues throughout the night, so you wake up feeling more refreshed and rested.

Main Features

  • 300 Thread Count Sateen Weave, 60% Cotton 40% Outlast
  • Outlast technology absorbs, stores & releases heat
  • Balances temperature around your head and neck and maintains optimal sleep temperature.
  • Provides thermal compatibility with your partner
  • Hypoallergenic
  • Twin includes one standard pillowcase.
  • Full/Queen sets include two standard pillowcases.
  • King/C.King sets include two king pillowcases. 


  • Twin: Flat Sheet – 66” x 96”, Fitted Sheet – 39” x 75”, Pillowcase – 20” x 30”
  • Full: Flat Sheet – 83” x 96”, Fitted Sheet – 54” x 75”, Pillowcases – 20” x 30”
  • Queen: Flat Sheet – 92” x 102”, Fitted Sheet – 60” x 80”, Pillowcases – 20” x 30”
  • King: Flat Sheet – 108” x 102”, Fitted Sheet – 78” x 80”, Pillowcases – 20” x 40”
  • California King: Flat Sheet – 108” x 102”, Fitted Sheet – 72” x 84”, Pillowcases – 20” x 40”

Product Code DWOUTT


Our current delivery area includes the 48 contiguous United States.

If you live in DC, DE, MD, NJ, RI, the California Bay Area, and limited addresses in the following states - CT, FL, MA, ME, NH, NY, PA & VA please call 1(866)753-3797 for details), most items will be available for next day delivery. You will be able to schedule a date and a 4 hour time window for your delivery at the time of purchase. Delivery appointments are available Monday through Wednesday & Friday through Sunday during regular business hours. Sunday and Monday deliveries are not available in FL. Limited evening hours are available.

If you live in the Los Angeles, CA or Dallas, TX metropolitan areas, you will be offered a Preferred Delivery Day at the time of purchase. The 'Preferred Delivery Day' is based on the zip code of your order and an estimate of when our delivery team will be in your area. Actual delivery days may vary according to location. Our local delivery agent will call you to set up an exact delivery day and 4 hour time window. Delivery appointments are available Mon-Fri between 9AM & 6PM.

What To Expect From Your New Mattress

If you live in the 48 contiguous US states but outside the above areas, your order is estimated to be delivered within 2 to 3 weeks, remote areas may take longer. You will receive a call when your order has arrived at our delivery agent, approximately 10 days after placing your order. The delivery agent will set up a convenient delivery day and 4 hour time window. Delivery appointments are available, Mon-Fri between 9AM & 6PM, to all addresses that are road accessible. Cancellations of orders in transit in these areas involve a restocking fee of 20% of the retail price of the merchandise, plus local delivery charge.

Please note: The Sleepy’s Comfort Exchange Program is only available in the following states: DC, DE, MD, NJ, RI, the California Bay Area, and limited addresses in the following states - CT, FL, MA, ME, NH, NY, PA & VA (please call 1(866)753-3797 for details).

Ferry service may be required for delivery to select locations. Additional fee will apply - may vary by location. Please call 1-866-SLEEPYS for more information. 

A person over 18 must be present to accept any mattress or furniture delivery.

Some items are shipped via UPS. These items will arrive separately in approximately five (5) to nine (9) business days (Monday through Friday, not including holidays).