I bought this mattress based on the high reviews.  The first couple of times I slept on  this mattress it seemed totally fine, however, after sleeping on it for 3rd time, each time I could not sleep and started to get back pain. It could be that it's just too soft for my back, or another issue. I often ended up just sleeping on my couch instead.  I returned the mattress after 2 months of trying to sleep on it on and off.