"When the quest for sleep is fruitless, a night seems like a year." Sleeplessness, it turns out, isn't a condition peculiar to modern times after all. The ancients had their bouts with it too.
畢竟不成眠，一夜長如歲……」（憶帝京．柳永）失眠不是現代人的「新興疾病」，老祖先們也同樣為失眠問題所苦。