Check the listing for details. Simply Essential Waterproof Soft Top Fitted Mattress Protector - Twin - New. Color: White, Condition: New with tags. Listed at 15.00 USD. Protect your mattress with ease using this Simply Essential Waterproof Soft Top Fitted Mattress Protector. Designed for twin size beds, this mattress protector is made of durable polyester material that is both soft and waterproof. Its fitted design ensures a snug fit on your mattress, while the white color adds a touch of elegance to your bedroom decor. With a length of 75 inches and a width of 39 inches, this mattress protector is perfect for any bedroom. Its features include waterproofing, making it a great choice for those who want to keep their mattresses clean and dry. Add this Simply Essential Waterproof Soft Top Fitted Mattress Protector to your bedding collection today and enjoy a peaceful night's sleep.