Toddler waking in the night since arrival of baby brother

[sleepdeprived67535]

Already posted this but didn't get a response so thought I would try again.

My 2 year old DD has start waking up every night around 4am since we have had DS. I have heard this is common and thought it could happen as she did it occasionally before DS (a couple times a month).
DH has been resettling her as I am up every couple of hours feeding DS so am already very tired. The issue is she takes so long to go back to sleep last night it took 2 hours. She gets up later because of it but it's making her more tired during the day. She is definitely acting up which I'm not sure if it's because she is tired or because of DS or most likely both.
Any advice appreciated and if anyone has experience of this how long did it last?
Finding it really hard at the minute.

Bump

Congratulations on the new baby.

Can you stick your husband into sleep with her for a few nights? See if you can break the cycle?

Or maybe if you are feeding baby about 12/1 - could you try rousing her slightly and letting her then fall back to sleep - to again see if you can change the sleep pattern.

Don't stress too much. She's tiny and her whole world has been turned upside down. I'm sure it will settle with time.

I wouldn't have your dh sleep with her or she'll get used to having someone with her at night and it'll get worse.

She's probably unsettled by the arrival of new brother. I don't have experience of this (though soon will) but my best guess is that you need to make her feel safe, which can be done by firm rules and giving her enough attention.
Firm rules give her a sense of safety as she'll know you're there and you won't let her do whatever she wants. Like a safety net.
At the same time, giving her attention (at set times) will comfort her that you still love her and she won't lose her place in the family to the new baby.

So when she wakes up - first, don't go in immediately, wait gradually longer to go. Then, when your dh goes, he should stay with her a certain amount of time. Say, 15 minutes maybe. After 15 minutes he needs to go back to bed. She'll definitely kick a fuss the first time this happens ; let her and wait at least 15min before your dh goes back in to settle her.

Don't let her sleep later than usual. If she's tired, that's her own fault.

And during the day, do make sure that you don't spend all your time fussing with the baby, set aside times to do things she likes to do (when baby's sleeping for instance, but also when he's awake so she sees that sometimes she still gets priority over him).

Again I have no hands-on experience but for what it's worth this is what I'd do if DS gets unsettled after DC2's birth.

I know you are tired but I think you need to be the one settling in; it’s almost certainly you and your attention that she is seeking.