If you like a firm mattress this is amazing. It has enough padding on the top that I am comfortable on my side or on my back. It is 11” which gives it some extra height compared to our last. There was no smell or off gassing when we took it out of the plastic. It does keep me cool at night with the added air flow, but it’s not like one of those cool to the touch mattress toppers that smell like chemicals, I was glad about that. Supportive and so comfortable.