Amazing comfort. I was concerned that it would trap heat and be hot but it’s not. It’s actually very cool. The mattress cover that comes with it is superb. It has turned a very hard mattress into an amazingly luxurious bed. One of the best purchases I have ever made in my life!   
You can’t put a price on a good night’s sleep. This has been a game changer. We are so happy. I don’t want to get out of bed in the morning!