Bought it due to pulled and pinched nerves in my neck. Vertigo issues, bad shoulders, arthritis and back issues as well. The first few nights I slept well but woke in so much pain in my back the next morning. It took about 3 nights to get used to it. I didn't realize the raised sides are different. I prefer the smaller side, I find the other side is just too thick. My shoulders can't touch anything. Would like to see it with both sides even, but I understand the point. Slides outta all pillow cases. I need to buy a zipper one. It's definitely helped my vertigo, I have t been dizzy once, so that's a win! It is solid white, very good memory foam. Cooling option would be amazing!!!