Our 8 year old daughter has severe allergies that flare up even more at night. She always complains of itchy eyes a few minutes after laying down for bed. This pillow protector has helped so much!! We already have an allergy protector on her mattress but had not thought about her pillow because it was new, but it has been amazing to see the difference when adding this protective layer under her pillow case. It works very well and is easy to get on and off because of the zipper.