We purchased two of these for a twin pop-up bed for our overnight guest. My husband and I both in our late 50's, both over 180 lbs tried them for the first time last evening and slept like newborn babies. Our expensive Temperpedic is not as comfortable as these are. Not to hard and not too soft..."Just right" like Goldilocks
May purchase one for my King Bed as well
 Slept on them for the first