dd2 is 11.5mo and has been sleeping through since about a month ago so I feel incredibly fortunate for that. Initially she woke around 6ish which was perfectly manageable, but it's been steadily getting earlier and earlier and we have now got to the unearthly 4.30am and she will just not go back to sleep. I usually cave in and bf her around 5.15 in the hope that she'll settle but she rarely does. We've tried blackout blinds, leaving her to yell (horrible), earlier bedtime, moving naps, shortening naps (she has 2 good naps every day - around 2.5 - 3 hrs in total) but nothing seems to work. Also have 3.9yo dd1 who gets woken by dd2 and then I start the day with 2 crying/yelling/tantrumming girls who need more sleep. Any advice gratefully received as I've recently gone back to work and am really starting to struggle 