Insomnia...friend or foe?

I had insomnia last night and was able to finish reading The Bad Girl by Mario Vargas Llosa. I haven't had insomnia in a long time. I didn't go to bed until 6:30 in the morning and now I feel like crap. I slept a whopping 3 hours...just a short nap really. On the bright side of things I was able to finish the novel so I guess you can say insomnia was my friend in that aspect, but it will be my foe later on today when I fall asleep flat on my face. More about The Bad Girl tomorrow.