Ronin, my littlest one, has been waking up by 6am every morning for the past week or so. I would rather not be up that early, but he sees the sunshine and there's no going back to bed for him! We need some kind of shades that will darken a room. I never thought of my bedroom as being particularly bright, but it's not dark enough to keep him sleeping.
I don't even expect him to sleep through the night! He's only 4 months old and I'm happy to wake up to feed him a few times between 10pm and 7am, but that extra hour from six until seven does make a difference in how rested I feel. Not getting involved in silly parenting debates on LiveJournal in the middle of the night might help as well! :-)
May you all sleep better than we do!