Our DD is nearly one and was sleeping through - since about 10.5 months but enough that we knew it wasn't a fluke iyswim.
She now wakes at least once a night around 2am and will quite happily let us lie her back down without crying. Doesn't cry while we sit next to the cot. Seems as if she is nodding off (too dark to see but breathing is even and arms start to go floppy etc) but as soon as we go to leave the room she starts to cry again. The only thing that makes her go to sleep is a bottle which I thought we had left behind at nighttime. I'm assuming this is a comfort/ routine thing.
She wakes sometimes during the evening which she hasn't done since she was tiny and can be comforted back to sleep. She just generally seems more unsettled and even during the day she is more 'cuddly' and chews on her comfort muslin more than usual. She is definitely not teething.
Any advice or similar experiences? Any suggestions for soothing her quickly would also be gratefully received.