Ключевые слова: alarm, asleep, awake, bed, bedroom, bedtime, blanket, clock, dark, darkness, depression, deprivation, difficulty, disease, disorder, dream, exhausted, fatigue, fear, female, headache, health, inability, insomnia, insomniac, lying, night, people, pillow, problem, rest, sad, sadness, sick, sleep, sleepless, sleeplessness, sleepy, stress, thinking, tired, trouble, unable, unhappy, wakeful, watch, woman, worried, worry, young,