We are currently transitioning our almost 2.5 yr old to a cotbed as she can now climb out of her cot. It isn’t going well. Most nights she won’t stay in bed and keeps getting up until she crashes out. Have tried reading stories, staying with her, silently putting her back into bed repeatedly, dropping daytime nap. Nothing is working. Any tips? How long will this last? It's been a week and it's exhausting.