If you are using one of these new foam mattresses please can you tell
me whether it can be hotter to sleep on than a conventional spring
mattress. I am considering buying one but am worried as to what it
might be like in summer. Also is anyone aware if all makes are the
same or some are better than others?


yep as the body heat is needed to make it work. that's a good reason not to get
it.
you could always try a pillow and see how it is.

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