Does the mattress protector protect against bed bugs? Administrator 13 July 2018 14:44 Updated The Endy Mattress Protector is not bed bug proof, because it does not fully encase the mattress. Related articles Is the mattress protector noisy? Is the mattress protector waterproof? How deep is the mattress protector? How do I wash the mattress protector? Is the Endy Mattress organic?