Boy, are they telling the truth when the other reviews state what a great night's sleep you get on this mattress!!! I wasn't sure since there's no foundation along with the mattress that the mattress wouldn't feel comfortable for me since I weigh about 250#. I thought the smell of the mattress wasn't overwhelming and went away within a few hours. I'm an extremely light sleeper and my dog would jump on the bed a few times at night and would always wake me up but not now. That stiff, achy feeling also went away with the 1st night's sleep. It's the best money I've spent in a long time.