well if you do the 'boolProp TestingcheatsEnabled True' cheat
type it in while in the neighborhood then go to your house there should be black #'s in the upper right corner,
then just go to your kids and just click and drag on their moods then you don't need to feed them or anything of that sort, no bathroom and no sleep, unless if you want them to sleep, then you just drag the bar down.