I used to have that. Took me years to figure it out but I used to drink earl grey tea and for some reason, the bergamot oil causes a very shallow sleep. I switched to Lady Grey tea which is the same, but with orange zest instead of bergamot.Wish I could stop waking up in the early morning(I mean before my alarm goes off). Always around 3 o'clock it seems. Lay there anxiously waiting to fall back to sleep before I have to get up. I think if I could keep my mind from thinking and wondering around it would help.
Back when the razor business was thriving and I had a long waiting list, I used to grind at night. I could spend hours of grinding post heat treatment, and noone would notice. But I couldn't pin razors because even gently tapping would carry through the entire house.Get up and drill some more holes in bowling balls. You could get something done and not make to much noise for others.