How to cope with no sleep

How do you ladies cope with the long nights of getting up almost every hour to 2-3 hours? I am completely exhausted almost to the point i can barely keep my eyes open throughout the night/day.

My husband has been gone since our son was only 8 days old and he will be back in a few days thank goodness! (military) I’ve started a night time routine, etc. and our son still wakes up repeatedly throughout the night. He’s now a little over a month old. I don’t have much family and when they visit they want to “visit” and i don’t get to sleep then. So I’ve been on my own for over a month now and it’s really starting to wear on me.

Any tips on how to catch up on sleep or what you do to cope with the exhaustion? I can only drink so much coffee 😩😩