I have a latex mattress that I find very comfortable except for the fact that I was sleeping very hot on it - my t-shirts drenched with sweat every night.  I was skeptical but decided to try this out despite the fact that is it extremely expensive. It made a dramatic difference - no more hot nights!  The top is very slippery but I have deeply pocketed fitted sheets designed for an adjustable bed, so I don't have the problem others have reported with their fitted sheets slipping off. I could understand how standard sheets could slip off as others have reported.  Very expensive but if you are sleeping hot this should do the trick!