Insomnia 'tis to blame, I'm afraid. 
I can't remember the last time I had a decent night's sleep. Typically, I wake at about 4am and go back to sleep just when it is time to get up.
After being wide awake for about an hour, I'll log on just to make sure that the world hasn't ended overnight and nobody has had the common decency to mention it to me. Believe me, I'm always the last to know about 
everything.
Carruthers