On a related note, if you sit with them while they're going to sleep, make sure it's "for a while before they go to sleep", not "until they go to sleep", or it

On a related note, if you sit with them while they're going to sleep, make sure it's "for a while before they go to sleep", not "until they go to sleep", or it becomes a contest where they stay awake as long as possible to keep you there.