DreamFit Degree 1 Basic 100% Microfiber Sheet Set - Twin XL - Slate Luxury sized to fit todays thicker, more conforming mattresses. Our sheets are sized so that the fitted sheet allows you to feel the conformability of your mattress. the Luxury size also allows the fitted sheet to go over the corners of the mattress with ease DreamFlexTM corner bands are securely sewn into each corner of the fitted sheet, guaranteeing a secure fit. The corner bands are 1 thick heavy duty elastic and fit under each corner of the mattress. The fitted sheet will not come off of your mattress until you are ready to take it off. DreamFlexTM 360o elastic sewn all the way around the fitted sheet is 4 times wider and 20 times stronger than most competitors products. FirstFitTM color-coded corner bands help to orient the fitted sheet correctly on the mattress. DreamFit sheets are very high quality and durable. Because of our high-end materials, our products retain the unique softness and color. One-year manufacturers warranty against defects. Proof of purchase is required.