I have had my mattress now for almost 3 months. I was super picky I didn't want to buy one too soft and not too firm. I have to admit I do not wake up with any back pain. But I am a side sleeper and toss a lot. It took about a month to really get used to sleeping on it. My complaints are that I do wake up with shoulder pain or stiffness. I also get very hot! I love how comfy it is but I MUST fix this temp problem. Looking to buy a gel foam topper. Wish me luck.