DD has never been the best sleeper esp for first 18 months whilst bf. However we thought we were finally getting somewhere as she was starting to sleep through 80% of the time.
All of a sudden though she needs me to get into bed with her. She will fall asleep fairly quickly but when I sneak away she wakes up again within about 10 minutes. I don't mind cosleeping, however, I don't want to go to bed at 7.30pm 
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Is this some kind of sleep regression? Any advice?