04-24-20 I am CHANGING my original post from below. I used these with my granddaughters on Monday and they are NOT waterproof as was indicated. I would like a full refund on these 2 items and will purchase them elsewhere unless you can guarantee me that you have a mattress cover that is waterproof for twin beds for a 3 & 4 year old. Please call me at 814-360-1640 to resolve this matter.

ORIGINAL POST IS NULL and VOID. These washed up beautifully. I have purchased for my two granddaughters who are 2 & 3 years old in case they have any "accidents" at night. Have not used them yet because we need to deliver their beds to them.