Before we moved into my parents house he would sleep on his own. I could lay him in his crib or put him down half asleep and he would go sleep

Now he cries when I put him down

My parents hold him while he sleeps sometimes and wait till he’s in deep sleep to put him down

They’ve been rocking him to sleep so I’ve scolded them not to hold him while he sleeps and to just put him down

I’m still in a routine with him

Could it be the 4month sleep regression?

I’m getting frustrated because I have to also tend to my 21 month old

I can’t hold him while he sleeps every time

I wanna scream my head off because I’m the end, it’s me dealing with them two while everyone’s working and I have the hard ball