Main entry: sleepless, lidless
Definition: always watchful
Usage: to an eye like mine, a lidless watcher of the public weal- Alfred Tennyson
Main entry: watchful, insomniac, sleepless
Definition: experiencing or accompanied by sleeplessness
Usage: insomniac old people; insomniac nights; lay sleepless all night; twenty watchful, weary, tedious nights- Shakespeare