When I first took it out of the box it did have a sort of light chemical smell to it, but after a wash it was perfect and fluffy. I previously had another mattress topper but it would start to slide off of the mattress after just three nights of sleeping on it. This mattress topper has straps to go over the mattress and it doesn’t slide at all. I sleep like a baby and I’m not worried about having to readjust my mattress topper twice a week. Love it!