This mattress is brilliant, its firm enough but still comfy. In this hot weather the bed does feel cool and I sleep so much better, as I am a very hot sleeper, the salesman recommended that as the bed has natural materials to keep it cool I should by a natural mattress protector , as most are made of polyester. It wasnt a sales pitch as they didnt sale them. I bought one for the new bed and I must say, I havent slept so well for years, a big thumbs up for the lovely mattress.