Just back from Liverpool where sleep was in short supply*. John Lennon wrote I'm So Tired whilst in India studying meditation with the Maharishi in 1968. After three weeks of quiet, and not so quiet, contemplation, it was driving him insane; to the point that he was plagued by insomnia. And it is a very John song. Every line is pure Lennon. Paul McCartney admits he had absolutely nothing to do with it.
This is for anyone who's having trouble getting to sleep tonight.
The Beatles - I'm So Tired
* Not getting to bed much before 5:00 a.m. probably didn't help