Make a sleep system, where you get tired and slow at night, to go faster you could get some soda-pop or something with cafine to wake up. If you don't sleep for a while, then you just colapse and are frozen (sleeping) for 30sec or so, during that time, anyone can steal your iteams by walking up to you and pressing "A" >:] it'd be more realistic, if you fall asleep outside you can get robbed heh
Urizen