So far I am very satisfied with my mattress. I gave it 4 stars because I was used to sleeping on a plush mattress and my back hurt very badly as a result. So this mattress is a medium comfort level and it feels a bit firm but, my back feels better in the mornings. I placed a mattress padding over it and that works much better. Chiropractors says to give your body a chance to adjust to the new mattress, at least 21 days. This mattress allows for a 30 day trial period. I feel this is the one for me.