This is a King Size flat sheet - in Dove Grey purchased from Mattress Firm. This was part of their "Sleepy's" set, our family does not use flat sheets; this item was washed but never used. Overview If there’s one sheet that guarantees better zzz’s, this is it. Featuring Egyptian cotton & TENCEL™ Modal blended fabric —with added Antimicrobial Silvadur™ treatment, means that this sheet is naturally moisture wicking and temperature regulating. This Deluxe Cool Stretch Sheet provides a super-soft, high-quality feel. Plus, superior stretch and grip technology means it’ll cover your mattress perfectly—and won’t move around if you do (or if you reposition your adjustable base). Benefits Breathable Breathable mattress and accessory materials regulate body temperature and prevent heat buildup to create a cooler sleep experience. Hypoallergenic Prevents dust mites from touching your mattress or bedding, making it ideal for allergy sufferers.