I was surprised that I like the foam mattress my friend Debbe recommended. I would go to a store and try them out and choose a bed that way. It was a leap off faith getting one delivered in a box,￼ that inflated on its own. It does conform to your body’s impression, it springs back to original shape when you get up from your bed . I did not want a bed that formed a sinkhole from your body weight.  It’s important to get the firm memory foam. Also good customer service, thanks. Jane