Exhausted

Being a sahm you get very tired & exhausted. My son is 10 months & still does not sleep through the night. Wakes up 2-4x a night. We usually sleep at 9 or 10pm, waking up at 6am (when my SO comes home from work). Having my SO watch him while get some rest isn't an option because he's asleep all day due to working night shifts. My only choice is to stay up & watch the baby. Anyone have tips on getting more energy or not being so exhausted?