Ключевые слова: anxiety, awake, background, bedtime, blue, bondage, concern, depression, disorder, disturbed, exhausted, fatigue, fear, frustration, headache, insomnia, loneliness, looking, lying, night, nightmare, pain, person, pill, problem, sad, sadness, silver, sleep, sleepless, sleeplessness, sleepy, sorrowful, space, star, stress, stressed, thinking, tired, top, unhappy, upset, white, worried, worry,