Baby slept in same room but DH didn’t wake. He would sleep through an earthquake. I had to wake him. I am terrible at getting back to sleep, DS can do it instantly, so sleep was always going to be an issue for me.
However, DH was working Mon-Fri and I wasn’t and no other children. So I could snatch naps in the day, baby willing.
Our routine for night feeds was simple, two nights on and two nights off. We found alternate nights didn’t work. It would only take one thing on your ”night off” to disturb you and you were days without a decent block of sleep. We’d be panicking thinking I have to sleep, this is my night off! But two nights respite gave us time to relax without the thought we had to be on duty the next night iyswim!
I was pumping milk and sometimes (because I was awake anyway, to wake DH) I’d go and pump in the night while he fed DS. It was still relaxing knowing that if DS was awake for a couple of hours it wasn’t my job right then!
These days, no more night feeds, I put DS to bed (I’m better at it) and get up in the night if he’s wet, bad dream, whatever but DH does the early mornings. He has to be up to get ready for work anyway and if it’s a weekend he still does it because he is so much more of a morning person than me!