Insomnia

I'm a terrible sleeper, which is perhaps why I got invited to contribute to a NY Times group blog on "insomnia, sleep and the nocturnal life". Here is my first contribution, which focuses on the work of Dan Wegner:

My insomnia always begins with me falling asleep. I've been reading the same paragraph for the last five minutes -- the text is suddenly impossibly dense -- and I can feel the book getting heavier and heavier in my hands. Gravity is tugging on my eyelids.

And then, just as my...