I’ve been without a bed for 5 years. A friend gave me a ‘mattress’ yet is actually a box springs, felt like a bed of rocks … remedy find a topper!!! This topper is thick, plush and like sleeping on a cloud … instructions say to let topper expand and air out for 48-72 hrs out of the box yet it was fully expanded in a few hours and there was zero odor … the removable and washable cover is a big plus … simple and easy and these old bones thoroughly enjoying the comfort the topper provides … P.S. the cat hasn’t slept anywhere else since the topper was installed!!!