I've tried numerous toppers over the years and this was my last shot at finding something that would be comfortable and help with my back pain. The packing smell dissipated after 2-3 days and I was finally able to try out the Cloud topper, but halfway through the night it was sliding off the bed. Even the straps and 2 tight sheets can't hold it in place. I suppose it would be comfortable enough if it was stationary, but after a month of 'giving it a chance,' my back pain has turned into full upper body pain from twisting around in my sleep while it's working it's way off the bed. Very disappointing.