We bought this for our camper to replace our hybrid mattresses. It is very firm which my husband likes. With a 2 inch memory foam topper its a good compromise for the both of us. We can no longer feel the bottom of the camper which was our goal. I wish I could give 4.5 stars. The only complaint I have was the smell which went away after a few days. If you're looking for a firm mattress this one will work for the price. but make sure you air it out well.