Eventide

Eventide was a sort of paste, with little crystalline grains suspended in it. You spread it across your eyelids when you went to bed and it kept the dreams off you. Monstrously expensive, but everybody bought it. It was all the more frightening to dream when you were the only one doing it. My mother worked in the Eventide factory, and they would be searched going in and out. The black market got going all the same. Half the time you got the fake stuff, though, and in the end I thought that was even better: you dreamed, but nobody else knew about it.