I've slept on a Lattoflex Winx mattress for the last 5years and absolutely love it. This 'Winx Air' mattress is specifically designed to keep its user from overheating, yet still providing adequate spport. The Winx is not only the mattress but also the support system which is unique in its sort I believe, but it should not be a problem to use only the mattress. The mattress itself is easily DOUBLE height of a 'normal' mattress. The only problem is, I don't know if Lattoflex is available in the US. But in any case, I would also avoid foam type mattresses like Tempur if you run hot because then you certainly won't be comfortable with one of those.