DD is not 5mth and 2wks. Until June she used to sleep from 8:30pm until 6am. Then in early June things changed and she started waking up at midnight and then at 3am. By end of June she dropped the midnight wake-up and would only get up at 3am. Now she has started again waking up at midnight and then after the 3am wake-up will not go back to sleep for a long time.
We usually put her to sleep at 8:30pm-9:00pm after a very long feed.
Is this normal to have sleep regression at 4 months and then nearly 6mths ago? is it a growth spurt?