The Serta Perfect Sleeper Pacific Peace 12" Hybrid Medium Mattress has truly been a lifesaver for me. I have severe arthritis and the pain makes sleeping through the night impossible. I was lucky to get two hours of sleep before pain interrupted my slumber. After two months of sleeping on this mattress I am consistently sleeping six hours at a stretch. Pain upon arising is inevitable but I have had a much easier time getting out of bed every morning. I feel so much better every day and if this is the result for a person with pain issues I can imagine (or would like to) how good one would feel if pain was not a problem. This mattress has been a real game-changer for me. Pain or no pain I highly recommend this extremely comfortable mattress.