Give it time, then sleeping bliss is yours....
Went with this mattress from Which reviews.... took us 3 weeks sleeping on it to fully get used to it.....now..... we are 6 months later, neither of us has had any back pain which we both suffered from, I only use one pillow now where I was using 2, and I sleep very solidly.... we have now bought one for our son who is also very pleased. Would highly recommend... arrived fast and a very good price. Thanks!