Although it has only been shy of two weeks, so far I'm sleeping at least 7 hours compared to only getting 5 previously. Feel much more rested in the mornings. Oddly, even if I do wake up in the middle of the night, I find I drift back to sleep easily instead of tossing/turning. My only negative so far, there are no handles / grip points on the mattres and Norvilla wants you to turn it every two weeks for the first six weeks?  This won't be fun!