This is the second one of these I bought! ( Needed it for our vacation home- couldn't sleep well with out it!) I didn't write a review for the first one and felt bad that I didn't, so here it is. Simply put, if you love a REALLY SOFT cradle of foam, this is for you!! I have really bad back and neck pain the firm mattresses really hurt. My chiro told me that in order for a topper to be effective, it must be at least 4 inches thick. I would have to agree because I have purchased the ones that are 2 inches thick and although they feel nice, they don't really help with my pain. This one REALLY works and makes my rather firm memory foam mattress so much more comfortable. I don't wake up with an aching back. Also the gel really does seem to make it cooler than most memory foam toppers. If you like a firm mattress, this isn't for you, but I can't say enough good things about it for me. It's perfect. I bought 2 of them!