ethan did this a few months ago. he started sleeping through at about 3 months old (i know, lucky me!) and then all of a sudden, he started waking up at 2am again for a feed a few months ago. i asked the early childhood nurse at his 9 month checkup and she said it's perfectly normal. she said it's because as babies get more mobile, they need reassurance that you're still around no matter how far they get.
hmmm... it made sense at the time he still wakes up now but usually just drifts back off to sleep when i pick him up. i hope he starts doing the all-nighters again soon.. good luck!
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