Hi everyone - hoping for some advice/shared experiences.
DD is 21 weeks old and I'm struggling to get her to sleep through the night. Our routine is:
6.15pm - bath
6.45pm - feed (5oz formula)
7.15pm - sleeps in cot (settles easily)
11pm - dream feed (5oz formula)
2am - wakes crying; BF for a couple of minutes then she falls asleep again
4am - wakes crying; again, I BF for a few minutes but she quickly falls asleep
6-6.30am - wakes for the day; she'll usually only take about 3oz of formula as she doesn't seem to want to eat much in the morning.
Over the course of the day, I'll get 3-4 bottles of around 5oz into her, depending.
I'm struggling with having to get up every couple of hours. I've tried everything I can think of - calorie-loading during the day, dropping the dream feed, giving her formula again at 2am in the hope she'll sleep past 4am, checking room temp, not picking her up and comforting her in other ways, a dummy etc. NOTHING makes her sleep longer than a couple of hours during the night. It's killing me.
It feels like she's a month behind. She's quite small (doc was never worried about her, though) and sometimes fusses and cries and won't accept her bottle. I feed her as often as I can in the hopes of getting more formula into her (I waste so much 
)
Is there anything else I can try?