I’m sure you wouldn’t have to use a box spring because the bed itself sits up pretty high. First night sleeping on it it was definitely firm something I’m not quite use to so I added a one once mattress pad and now it’s very good I love how soft the bed is and how full an heavy it is so you would have to worry about your sheets coming off in the middle of the night because they are truly tucked into to the bed and the fit very snug.