$20-30 per hour MINIMUM! That's only if the sitter/nanny shows up and the 1 year old and 3 year old are already asleep, AND the 8 and 10 year olds DON'T need baths. That's the price for them to be there, put the older kids to bed, and make sure they're still all alive by the time you get home, and absolutely nothing else! Everything else starts at $35 per hour and up.