When my grandchildren graduated to big kid beds I bought them each a mattress protector. My daughter said they washed up nicely but because they were so thick it took forever to dry in her dryer. I she had a bigger dryer or front load dryer she probably would not have had to wait so long.....lol.
She said they were perfect. 

Pros: Durable, waterproof, bedbug, and mite proof