3 year old hair pulling

Hello, I am new here but I am here for my daughter. She started pulling her hair out a little over a year ago(she’s now 3years old) and it was solely associated with her pacifier. Once we took the pacifier away, the hair pulling stopped. She then became a hair twirler (I am too) and we found no problem with that. However, in the past couple months she started pulling her hair out again. She twirls until she makes a knot and then pulls it out. There has been no major life changes with this new hair pulling. During the day we are able to stop her from pulling, but bedtime remains a problem. Any tips, trick, advice etc is greatly appreciated! Thanks so much!