There is plenty of time to sleep in the grave.

Sleep is like a drug. Take too much at a time and it makes you dopey. You lose time and opportunities.

Who said nights were for sleep?

Never go to sleep without a request to your subconscious.

The serpent, the king, the tiger, the stinging wasp, the small child, the dog owned by other people, and the fool: these seven ought not to be awakened from sleep.

I've realized that most of my best ideas have followed a good night's sleep.