I had my 1st restful nights sleep in a long time in the Stearns & Foster Lux Estate Pillowtop- Medium. I suffer with low back pain, but even after 1 sleep on this matress, I could move better & think clearer because I slept so good! When I read about this mattress having a cooling technology, I really didn't believe it, until I slept on it. I did not get overheated during the night, which was amazing because we leave out thermostat a little warmed than the downstatirs, so it was a win for me! I would highly recommend this matress! ** I did receive a free mattress in exchange for giving a truthful review of it.