I bought 3 sets of these for our new home. I’ve used them for a month. They’ve been washed at least 6 times each. So far no “pilling” has occurred. The quality seems to be better than what you can buy at a lot of the large chaindepartment stores, I have a plush Temperpedic mattress and they fit very nicely on it. I gave my daughter a set, and she has a 16” pillow top gel mattress and they fit it equally as well. I would have given them a perfect score, but just like most Jersey sheet sets I’ve bought, the top edge of the flat sheet comes out of the dryer with the wavy wrinkles in them. They have to be pressed if you want to make that “picture perfect” bed.