SnugSoft Imperial Bed Mattress Cover Size: 75" H x 39" W Merino Wool's 1 1/4" pile height naturally gives you a layer of cozy, comfort Four 2" elastic corner straps keep your pad in place. Fits up to 18" Imperial Mattress Pad is machine washable & Chemical Free Wool regulates your body temperature better than any natural fiber Wool helps alleviate pressure points great for those with painful joints