I purchased this mattress topper after reading SEVERAL reviews about them on Overstock. I have had a mattress that I called 'the mean mattress' for several years and I refused to pay the asking price for a new one when the one I had was in perfect condition....just mean. So I went to Plan B and researched the memory foam toppers. It was between this 4 inch one, which was described as a 'gel-like' feel and the 4 inche Serta memory foam, described as more of a foam feel. I got so confused I finally had to pick a review that matched my problem. I am a side sleeper and my mattress was hurting my shoulder. I LOVE MY PREMIER MEMORY FOAM TOPPPER!! Finally my body can feel some give when I lie down!! It is heavenly!!! It has solved my problem comletely! I put a 3 on appearance because as far as I'm concerned, foam is NOT cute! I put a mattress cover on top of it and I am in heaven. I have a king mattress and everything I read said to buy a size bigger, well, I think I screwed up a little when I got the california king because the sides are a tiny bit short but the length is perfect. I probably should have ordered the KING just for the side measurements because I didn't need the length as much as the sides, but it turned out OK. I think I got screwed up on what a Cal King actually was. I think it's just longer, but actually narrower than a regular King. If you're thinking about getting one of these toppers....do it! My husband can't tell the difference because the 'mean mattress' never bothered him, but I SURE CAN! You will LOVE IT! I let it puff up for about 24 hours before I put it on my bed. It looks very strange when you pull it out of the box, but be careful you don't open it too fast and tear it because it's kind of stuck together and flat when you get it. Be gentle!