We are very pleased with the Lucid Comfort 10"  medium gel memory foam mattress. It did not smell as I read in some reviews. It is very comfortable and my daughter loves it. She has not been in my bed since she recieved her new mattress! Thanks Wayfair and Lucid! I don't care nor dis I measure to see if it is exactly 10". My daughter is comfortable, sleeping well, and I got my bed back. Mission accomplished.