“If you set aside the incomparable cruelty and stupidity of human beings, surely our most persistent and irrational activity is to sleep. Why would we ever allow ourselves to drop off if sleeping was entirely optional? Sleep is such a dangerous place to go to from consciousness: who in their right mind would give up awareness, deprive themselves of control of their senses, volunteer for paralysis, and risk all the terrible things (and worse) that could happen to a person when they’re not looking? … Apart from the dangers of letting your guard down, there’s the matter of time. Instead of trying to extend the life of human bodies beyond their cellular feasibility, the men and women in lab coats could be studying ways to retrieve all the time we spend asleep.” (London Review of Books)