While my husband enjoyed the mattress, it does not work for me. I was hoping it would get better as mattresses take a little to get used to. However, there is not enough support for my back. After the first 200+ days I've had enough as my back pain has become unbearable (lower back, in particular). For reference, I am 5'5" female and weigh 115 lbs, I sleep on my sides and back and have never had lower back problems until now. I know it is the mattress as I feel great after staying on other mattresses in hotels, our guest bedroom, and family's homes. My husband sleeps mostly on his stomach, he is 5'10", 160 lbs and enjoys the mattress. However, I do not recommend this mattress.