So I've been putting my 5 month old to bed round about 9pm for a month. She used to wake once in the night for a feed then would usually sleep till 8/9am. I started giving her porridge about a week ago and she started sleeping through. The past 2 nights she's woke for a night feed and started waking up at 6am. Any ideas as to why she's doing this? I thought I had fracked the sleeping through (yes I know I'm lucky she only woke once). Just feels like we've gone back a step a little.