I wouldn't let my son do this personally, he's never slept through the night & has a minimum of 2 wakes every night but I'd rather that than hearing him cry alone x
I have twins. One of them always cries before she goes to sleep at night. It’s a very specific tired cry. We stay in the room with her and sing to her and comfort her. She doesn’t want to be picked up, she just wants to sleep. I find it odd as neither of my other two kids have done it, but she’s done it for a few minutes every night for the last couple of months, when we stopped using dummies x
I feel really sad about this, imagine crying yourself to sleep :(