Waking up at 4 am and wondering what to do

The last few nights I have woken around 4 or 5 am and then been restless. I even got up once and just began my day. I don't know why this is happening but last night I woke at 4 and went to the bathroom and when I came back my mind was going a hundred miles an hour. I tried an old trick of just watching my breath but nothing seemed to be working. I lay and tossed a while longer and remembered my own pocket pack. I wondered if I should take Coffea #6 for my overactive mind or Nux Vomica #8 for overwork and waking with a mind full of thoughts. I opted for the #8 and I cannot remember the process of going to sleep again but I woke at 8 and felt refreshed.