I have slept on this mattress several times since my purchase last year and have found the mattress to be very comfortable. My regular bed is a firm Sealy Posturepedic mattress. I like really firm mattresses, and I was surprised that this memory foam mattress was as firm as it was. I just hope that after having the sofa bed closed up for months at a time that the mattress will always spring back to its shape and firmness when needed, and last a good long time.