my daughter now 19 months always been a good sleeper but now seems to have regressed....she has a solid routine in the day, nap from around 12:30-2:30 and bedtime of between 7-7:15 where she usually falls asleep in around 5 mins....however, last 5/6 nights she's been waking at specific times once a night, either 11:30 or 1:30am, and screaming blue murder. First few nights I went in and picked her up and consoled her. Now hubby and i have agreed to let her CIO. This does seem to work, however this morning she had a little fuss at 4:30am and then seemed to just doze on and off not crying, til around 6:30am as opposed to her usual waking time of 7am onwards....i work 3 days a week so wonder if this is something to do with sep anxiety? any words of wisdom gratefully recieved!