Sleep and Dreams Crossword Puzzle

QUESTIONS LIST:

• sleepwalking : walking or carrying out behaviours while asleep
• sleep apnea : a sleep disorder in which a person has trouble breathing while asleep
• insomnia : the failure to get enough sleep at night in order to feel rested the next day
• night terrors : sleep disruptions that occur during stage iv of sleep, involving screaming, panic or confusion
• nightmares : unpleasant dreams
• circadian rhythm : the rhythm of activity and inactivity lasting approximately one day
• consciousness : a state of awareness, including a person's feelings, sensations, ideas and perceptions
• dreams : a series of thoughts, images, and sensations occurring in a person's mind during sleep
• narcolepsy : a condition characterized by suddenly falling asleep or feeling very sleepy during the day
• rem sleep : a stage of sleep characterized by rapid eye movements
• daydreams : a series of pleasant thoughts that distract one's attention from the present
• sleep : an essential state of consciousness, involves stages and periods of dreaming