Love this mattress! We went from a medium foam  mattress that so frustrating to this so comfortable mattress. We are heavier people, which makes it tough to get the right support for a good night’s sleep. However, this is mattress is perfect and provides perfect support. 
The only suggestion might be, is to give it at least 2 full days to fully expand. It does not say this in the instructions but it is a practice we have always done to make sure it is fully expanded.