Anything but normal, Purple® SoftStretch Sheets have just the right amount of stretch. Able to adapt to the body, with everything you covet regarding luxury sheets (coziness, softness, cooling qualities, etc). they also enhance, the No Pressure® Support of the Purple Grid®. Thus, the perfect sheet for the Purple® Mattress, they are breathable, as well as moisture-wicking, keeping sleepers at the ideal sleep temperature. Seamless, this high-end bedding not only looks sleek but ensures you don't feel any strange seam while sleeping. Plus, the fitted sheet has heavy-duty elastic, which keeps the sheet precisely in place, with no creeping off the corners of your mattress, occurring. Designed for the optimization of both the support and true comfort, of your mattress, Purple® SoftStretch Sheets offer four-way stretch and will allow you to feel the luxuriousness of what can best be described as a soft embrace. To improve your ability to fall asleep and awaken refreshed, with Purple's one-of-a-kind, high-quality, and washable (cold setting) material, sheets. Easy to clean, they look new, wash after wash; hang dry or tumble dry on the low heat setting (for best results do not bleach or iron). Sets include 1 fitted sheet, 1 flat sheet, and 2 pillowcases. The king split set includes 2 twin XL fitted sheets, one king flat, and 2 pillowcases. Please note, consists of a single pillowcase for twin and twin XL sizes.