Please sleep 💙💤

My son, my baby bear is a night owl lately since everything he will be up for hours I'll nurse him and my daughter and my daughter will eventually fall asleep until like 6am but even though I love these late nights with my son I need him to get on the same schedule as his sissy because child it's only mama providing -going to school and working- he snuggles on my chest since he was born and will sleep in their crib or the bouncer for nap time but to fully sleep he has to have me near him... I get up throughout the night to nurse them anyways] can my son sense that his daddy isn't here? Or just be clingy I need advice because I miss sleep...

Please be kind and yes both of my babies are cared for 💙 and please don't suggest the cry it out method it's heartbreaking to "just let them cry" so I won't be doing that but any other advice help me and yes they both use/will take a binky (pacifier)

Currently wide awake with my son laying on my chest at 1:40-2am and we need to be up at 6 am

They're both almost 6 months "new"