[This review was collected as part of a promotion.] I loved this mattress the first time I got it but then hated it when both sides of the mattress sank and we would just roll off the bed and then got another one that was a replacement and then within a month, it did the same thing. I'm about 100lbs and my husband is around 150lbs so there really isn't any reason why the mattress should be doing that but even if we were heavier, why would it do that anyways? Love the softness and the pillowtop but if I can't even lay on the bed without worrying about rolling off, what good is it for me to use. I want to enjoy a good nights sleep and with this, we can't even do that. Really disappointing since I got rid of my original mattress that I had for over 10 years and it was still perfectly fine and comfortable to have to get this and then have to buy a whole brand new mattress is sad.