I cannot BELIEVE how amazing this mattress is for the price!  I always had back pain no matter where I slept, tried different mattresses, pillows....you name it.  I'd toss and turn all night.  Consistently had shoulder, neck, and lower back pain.  First 2 nights sleeping on this mattress and I've woke up with no soreness or stiffness or pain at all!  It feels amazing!  I've also been able to sleep comfortably on my back (which I NEVER do).  It is so incredibly comfortable and soft, and conforms to your body when you sleep.  And I can't feel my bf moving around next to me at all!  I'm 104 lbs, and he is 220.  I don't feel him at all when he tosses and turns, or gets up in the middle of the night.  I really can't recommend this mattress enough, it feels so good to not wake up and have soreness or pain and to just feel so good while laying in bed.  I never want to get out lol.