I'm 27 weeks pg. I'm pretty comfortable physically at night - have been very hot but less so the last few nights. DD has just started sleeping through. But I am lying half awake for at least three hours a night sometime between 2 and 6. Then I just get off again as it's time to get up for the day.
I think partly I'm not used to a child that's sleeping through and my body clock hasn't reset.
Any advice on how to get better sleep, esp now that I need it more than ever??
You could try a hypnobirthing cd or something like that, which might also come in useful a bit further down the line. In general the breathing techniques are good for relaxing - long, slow breath in through the the nose, deep exhalation through your mouth.
It might just be a stage in your pregnancy - I've had trouble sleeping at various points. Seem to swing between either total exhaustion or not being able to sleep.
I have an assortment of pillows, and I stead of sharing a duvet we use a single and a double, which allows me more options for manoeuvre. Then the old clasics, time to wind down before bed and a warm lavendar bath. HTH
Without wishing to depress you - I think it's pregnancy itself which is causing this, rather than your body clock resetting now your DD is sleeping through. This is my first and I've had long periods of insomnia around 2-4ish since about week 29.
Are you waking up hungry? I've found eating a bit more in the evening is helping. And a pregnancy support pillow helps as well.