I am giving myself 3 stars for not "really" reading the descriptions thoroughly, and making a better selection: I should have purchased a larger one and I also "thought" it was thicker, my pet is entering into his arthritic stages and he has issues finding his comfort spot. At first he didn't want it. So I left it out near his usual spot and he inspected it, but not for the night. lol, So it will be ok for now but I will continue to look for another. And next time I will take out my measuring tape and make a better selection.