trouble falling back asleep

Samara
Anyone else have trouble falling back asleep after a night feeding? It's gotten so bad that I go to bed at 9pm and my fiancé now takes the first feeding at 1:30am, and I do the 4:30am feeding and am up after that. If I did the 1:30 feeding I would be up since that time too. A few nights this week he was up at 3 so I've been up since 3 and trying to make it through the day is so exhausting. Any tips for how to combat this?