So I have had the 10in for bout a year naw, and when I first got it was amazing. Now after and year not so much. I’ve noticed it started to sag, and yes I did the recommendation of turning the bed so it even out on wear, I also have a really hard time staying asleep because the bed just gets so hot. I’m hopping the cooling topper helps, if not I’m going to have to look for a new bed.