Protect your Twin XL mattress with the DMI Waterproof Mattress Protector 2‑Pack — perfect for dorms, guest rooms, and bunk setups. Each soft, breathable cover blocks spills, sweat, and accidents with a 100% waterproof, noiseless barrier that won’t crinkle or trap heat. The secure fitted design fits mattresses up to 12" deep and stays in place without shifting. With two protectors included, you always have a clean backup ready for quick changes.