After 24-48 hours of fluffing up, this mattress topper was nice, thick and cozy. My teenage son sweats a lot at night and we are always trying to find him better sheets, pillows, fans and such to keep him from waking up drenched. He loves it and says that it actually does cool him off and help him to sleep better. Our sheets still fit well and it seems like it will be durable if taken care of for a while. I'm very happy with this topper!