This is a very firm mattress and you CANNOT flip the mattress. Its flat on the other side so you do not have the option to flip it for whatever reason i tend to do it if i start to get a dent in the mattress from sleeping on a certain side too much. But you cannot do that with this one. But if you are not looking for a firm mattress this isnt for you. I wasnt looking for a firm mattress either but now i have one.