So my brother in law just got custody of his son , he’s almost 6 months old and the baby’s mom said…

So my brother in law just got custody of his son , he’s almost 6 months old and the baby’s mom said he never sleeps alone . That he refuses . And he hasn’t stopped crying since he got here . So last night I let my son sleep in my SIL room and I took my nephew . Didn’t let him sleep with me and he slept in the crib🙏🏼🙏🏼 woke up every 2 and a half hours but I think that’s good for a baby who’s never slept alone !!