Hi it is extremely normal to feel tired and sleepy all the time during pregnancy :) he body is working so much to contain a full sized baby!
I think the reason why you feel so awake at night is because Perhaps you sleep too much in the day. Night sleep is most important for you and the baby. Try to find some activities to do in the day? You can consider doing for prenatal yoga or Pilates classes.
Go for short slow walks in the evenings everyday. For myself I bought a book about yoga poses for pregnancy and did it on my own at home. Other times I was busy baking or packing baby stuffs so I was constantly on the move.
The more you walk around and the more you do squats closer to your EDD I think it will in your labour in terms of giving you more stamina to push. Especially squats. I did mine too late and hence my baby never really got engaged even during my EDD.
However if you feel breathless or giddy in the last trimester pls make sure someone is around when you go for walks. Other than that just relax and enjoy the last trimester.
Read more