Breastmilk vs formula at night

Kim

So I breastfeed all the time but I was curious if I gave my son who is 3 weeks formula at night would he sleep better. Right now he dont sleep well at night and sometimes during the day unless I'm holding him and as soon as I lay him down he wakes up. Lady night he woke up like ever half hour and I had to get him back to sleep. My older son was formula fed cuz I didnt make enough milk and he slept through the night most the time.