Have a snack!
DS would wake up every 2-3 hours, I was so drained. My CHN gave me the tip, you need energy from something, if its not sleep, then its food. So I had a banana, joghurt (the toddler ones in a suck pack) or a muesli bar while feeding, plus a drink. No, I did not clean my teeth, sometimes I would have a piece of gum if I felt fuzzy.