I recently put a Allerease zippered mattress protector on one of my beds. And I'm very pleased with it. It was easy to put on with its flex fit. I can already tell why this is the #1 selling brand.
Allerease zippered mattress protector is waterproof, allergen barrier & moisture wicking. It is also very comfortable, soft & quiet. You get maximum allergy & bedbug protection. With a lifetime warranty.
 I feel good knowing my daughter will sleep easy & breathe better with this mattress protector.