I usually get my toddlers in bed by 9 at the latest and usually do eat right before bed. I let them sleep until they either wake up on their own or the hunger need is in the red. If they have to go the bathroom I tend to let them use the diaper just because it's less disruptive to their sleep schedule and there's usually plenty of time for potty training. I usually will let my toddlers nap if their energy bar dips into the yellow but I don't always let them take a full nap only enough to get them back in the green again. I prefer to send my toddlers to bed in the red and cranky, because I seem to get less nightmares that way in the early days (granted I also have the parents read them to bed and have the lullaby channel playing) until they can get their skills up enough that it's not a potential issue any longer.
I rotate my skilling between letting the parent help them out and having them do it on their own. I tend to rotate between each skill when they top one off a level they move onto something different. The Wabbit Tablet is nice if you have multiples but I tend to avoid it if I have a Singleton since it's a bit slower for skilling.