Newborn sleep/feeds

Just wondering how you guys work out routines with your partner with a newborn?

Our little man is 4 days old, he is amazing during the day, feeds every 3 hours, sleeps in his bassinet, we can make noise.

Come night time he still usually feeds every 3 hours but between feeds he won’t stay in his bassinet and has to be held and settled with a finger in his mouth.

I want my partner to get enough sleep so I’ve been staying up all night and only having 2 hours sleep before my partner sleeps and 2 hours sleep when he wakes up (before the next feed). This clearly isn’t practical unless I can manage to get some naps during the day but with midwife visits, visitors and appointments as well as my partner going back to work in 3 weeks, I have no idea how to get enough sleep to live on while making sure my partner has enough sleep.

Any ideas?