It has not been 30 days since receiving it and starting to sleep on it, but so far so good. I will say, that my hips don't hurt anymore when laying on my side, like I usually do when sleeping. I also realized just how bad my old mattress was sagging when my pillow didn't seem as high with this new BB mattress (meaning my body and spine were finally aligned properly when laying down). My neck also doesn't hurt as often (i.e., crick in neck) anymore due to the now proper spine alignment.