We collaborated with Beddy’s for our son’s teen bedroom makeover and he actually makes his bed! This bedding fits on the mattress just like a fitted sheet. The sides are deep, so it fits over pillow top mattresses, as well as standard. There are zippers on both sides to make it simple and quick to make the bed, which is great for any age. This bedding definitely is worth the switch from traditional bedding because of its functionality and beauty.