When you say you sleep eat do you mean that you are still totally asleep when you raid the cupboards?
My friend did this quite often, would have no idea until she got up in the morning to the destruction in the kitchen. Dry breakfast cereal, whole packets of dried fruit, uncooked pasta and rice, nothing in packets or boxes was safe. She ended up fitting window alarms on the cupboards but that only woke her young son who found the sight of his zombie like mum distressing. Off came the alarms! The thing with her was she never put any weight on so the dr's didn't treat it as a problem. I don't think they thought thru what happens with rice, pasta and dried pulses when a vast quantity hit a moist stomach! She had to stop having those things in the cupboards as they are dangerous. I've lost touch with her now but last i knew she was still doing it, along with sleep walking butt naked in the street!