Ключевые слова: alarm, annoyed, anxiety, asleep, awake, bell, blindfold, classic, clock, college, concept, delayed, dial, disorder, drug, education, fatigue, home, insomnia, knowledge, light, literary, mask, medicament, morning, night, painkiller, pill, problem, rest, retro, sleep, sleeping, sleepless, sleeplessness, sleepy, stack, stress, study, suffer, table, time, timepiece, tired, treat, wake, wake up, water, wood, wooden,