I have been sleeping on the same twin mattress forever so I bought this. When you first lay down, it is so comfortable but as time goes by, (Note: I have only had this mattress since February) the middle sinks which means that you have to rotate it. I would recommend buying a mattress pad with this so it protects it. Although my bed sinks in the middle I am however very happy still. It is still comfortable. I would buy this if you are on a tight budget and need a comfortable bed. If you are able to spend some more, then maybe get a higher quality bed, but this bed does justice and it is comfortable.