Started out as one of the mattress I've ever had. Somewhere in the 5th year I started noticing I'd wake up with an ache or discomfort some mornings. Then someone who sleeps in the bed commented that it started out great but by morning they felt like they were in a hammock, not good for a side sleeper. Well I hit the six year mark with it two months ago and have been looking for a replacement. I'm going with a hybrid this time, also by Sealy. Point of reference it was a queen size 8" comfort series. I'm a side sleeper, 5'10 250lbs and the matress was rotated regularly as recommend.