NIP King mattress cover & protector factory sealed.

Super sanitary mattress “envelope” that seals your king size mattress completely. Works even on super thick mattresses. If you’re using a hand-me-down or in a furnished apartment, you can block any dust or creepy crawlies from ever escaping your mattress! It will also keep a new mattress immaculate! This will even protect against wet babies or other spills! Completely washable, super comfy, built to last.