9 words in this vocabulary list
adjective characterized by irregular or erratic bursts of activity or energy
verb to sleep longer than intended or necessary
noun a state of being tired or drowsy
noun the act of making a harsh or loud noise while sleeping
noun a state of drowsiness or sleepiness; the quality or condition of being sleepy or drowsy
adjective describing a state of not being refreshed or rested
noun the action of opening one's mouth wide and inhaling deeply due to tiredness or boredom
adjective characterized by yawning
noun a characteristic pattern of behavior or physiological functioning that corresponds to a specific time of day
noun the beginning or onset of sleep