Designed for deep mattress experience exceptional softness and long-lasting durability with sheets that are perfect for sleep. The extra-deep 25-inch pocket super soft fitted bed sheet will fit your mattress tightly and put an end to sheet corners popping off by morning. Deep-fitted sheets are made of 100% microfiber. These microfibers' extra deep fitted sheets have a 200 thread count. Our microfiber brushed sheets are machine washable and designed to perform flawlessly in the bedroom, cot, dorm room, toddler and children's room, RV, cabin, and vacation homes. The elasticated corners hug the corners of your mattress to keep the sheet safely in place.