i love this mattress. i didnt want a completely foam mattress so a hybrid was perfect since i needed back support. i have never slept better. my husband and i both love it and we are on opposite ends of the weight/size spectrum. we got the firm so he wouldnt sink in too much. my only negative is that it is suppose to be cooling. if you lay on the bare mattress it feels cool for awhile but then your body heats it ip just like any other foam mattress. cant really feel any cooling effects when sheets are on it.