Patrick Hamilton said this quote

What a thing this sleeplessness was!...If sleep, she thought, could be compared to a gentle lake ina dark place, the sleeplessness was a roaring ocean, a raging, wind-buffeted voyage, lit with mad rocket-lights, pursued by wild phantoms from behind, plunging upon fearful rocks ahead, a mad tempest of the past and present and future all in one. Through all this the pale, strenuous mariner must somehow steer a way, until at last the weary dawn, not of sleep, but of resignation to sleeplessness, comes to calm the waters of the mind.