Like the product very much. Very comfortable. Getting more restful sleep. Arthritis aches were reduced.I wanted a memory foam layer on top of my mattress but that I could still sleep on, versus sleep in.. which is what happens when the memory foam is too thick. This was 3 in, which was just enough to provide me comfort when I sleep on my side without the falling into the foam effect. So glad I got this. Have been sleeping better all week.We really like this topper as we take it on vacation to assure we have a good night's rest. It takes a couple of days to get fully plump and off gas (all of them do) then it is a nice topper. Not to heavy to roll up and take along worth the price for sure.Ok. So I love it and hate it. This topper helps with my back and hip pain (yay), BUT it slides around on my bed, it's hot, and it so molding to your body and you sink so much that it's hard to move in the night.Love it cant sleep without it but it does move a lot (closer to the edge, have to slide it up quit often if your a resless sleeper) when sleeping on it. But over all amazing and does the jobI have not slept well for over 5 years. I finally caught on that something was not right with my mattress. I have one of those Sealy supposed plush cushion top (whatever) over priced mattresses that is about 1.5 feet thick. But apparently it is not that cushy after all. For that reason I purchased this 3" Topper in hopes I could sleep through the night once again.Now I'm rough and tumble @ 6 Feet + & 214 Pounder and I cannot believe I'm going to use this verbage but here goes... sleeping on this Gel Topper is like Sleeping On A LiL Baby Cloud. Seriously I have slept better beginning the 1st night than I have slept in over 5 years. Now I am consistently sleeping at least 7 straight hours every night since using it and I'm waking up with ZERO Pain.I've tried several other toppers but this one is the only one that has or is working great for me. I would definitely buy it again.Oh, mine is staying in place and with my topper there was/is NO Bad Smell at all. I also left it to "Normalize" after taking it out of the shrink wrapping for about 12 hours and it is working great. You do what you think is best for setup ie follow the directions or not. As for me I put it on the bed to air out, put a sheet on it and went to bed as I said right at 12 hours after opening it and its working just fine. I did what I saw I had to do, you do what you have to do to feel better. BUY IT!!!I purchased this foam mattress topper because it looked exactly like the last one I had that I purchased seven years ago and it is so soft that you just sink right into it and I woke up with the worst shoulder and back pain that I've ever experienced in my life this is not the foam topper that I originally hadIt arrived quickly. It was ready to sleep on after 24 hours of airing out and plumping up. My mattress is much more comfortable and it keeps me cool throughout the night. The topper has a cover so it can be turned over. The bottom side is smooth and the top is bumpy. Even with a mattress pad, I can feel the little bumps and ridges when I initially get into bed. However, it’s so comfortable that I quickly fall asleep and forget about the bumpy surface. I may turn the topper over with the smooth side facing up or use a thicker, quilted mattress pad. Overall, a smart choice,I don't know where to start with the problems this has.TL;DR - it smells, it's not cooling, the texture is obnoxious, it's not soft.This isn't cooling, not even close. We found it raised the temperature of our bed RIDICULOUSLY. My partner had the brilliant idea of removing the protective cover because they thought okay, polyester waterproof cover plus the waterproof cover we have on the mattress may be trapping extra heat. So we tried that, and yes - we found the topper to be significantly cooler that way.But that led to another problem. The texture. This has so many ridges and bumps and rolls it's like sleeping on Lego if you threw a blanket on top. Not to mention there are THREE different textures - the typical egg-crate for the top quarter then bizarre roses for the middle half, then waves for the bottom quarter. For 'air flow'. No, for massive discomfort.And the problem is, although this topper is supposed to be soft memory foam, it's surprisingly stiff and doesn't have the give you'd expect it to, so you can feel every ridge and every bump of each of the textures. We thought okay, we'll turn it upside down and have the flat part up. Tried it, and again we were dealing with a temperature issue, where the topper was once again too warm.Oh, and I should mention that in the week we attempted various ways to sleep with it, the smell did not dissipate in the slightest, despite the manufacturer's insistence that it would.Terrible topper, what a disappointment.Have been using since March. Developed breathing problem. Doctor could not find anything wrong. Could not breath at night. My mouth and throat would become so dry it would wake me up. This was getting progressively worse until after waking several times each night I started getting up and sleeping on the couch early each morning just to get some sleep. Finally I decided to try taking the thing off and the problem went away. This may be anecdotal, but I have no doubt that this mattress topper was the cause of my breathing problems.. Now my problem is how to dispose of it. I would like to return it.We had a much thicker gel memory foam in our forepeak last couple years (and the sleep was incredible) but it was so hard to move it around to get to storage underneath, and to take off the boat for winter. This is PERFECT. LOVE the fully enclosed cover with zipper, total protection for when you have to move it around, fold it/roll it etc (my thicker one came with more of an elasticized fitted sheet with it), which to be honest is the main reason I purchased this one since I knew it was protected well.While this mattress topper is super soft and comfortable, it is the exact opposite of cooling. Frequently waking up to shift to a spot that is not extremely hot.Do not be fooled by the "Cool Cloud Gel" portion in the name of this product if cool what you're hoping for.Also, since it is very soft it will not be good for those with back issues as there is little support.Delivery, packaging and very little odour after opening was great.