Overall this is a great mattress and I'm confident the quality is topnotch. However, this is a much softer mattress than anticipated. I got the medium firmness as it was stated best for back and stomach sleepers, but I not only sink into the bed, struggling to rollover, but I find myself waking up with numb arms because they're out of alignment. For reference, I'm a 140# female with no known physical issues, so rolling over shouldn't be this much of a problem. Again, the mattress itself seems great, but I really wish I had gotten a firmer version.