My DC2 slept really well initially, but for many many months now, wakes at either 2 am, or 'sleeps through' and wakes at 5 am - ready to start the day. Both times she is desperate for a bottle of milk, but then sleeps again fairly quickly if it's the middle of the night. We've tried leaving her - once for an hour , but she never settles unless we go through, and never settles without the milk. Really really starting to struggle......