Sleep and Dreams Cue Cards

Avery is curious about what happens when people sleep. Avery asks a teacher to explain what sleep and dreams are. How should the teacher respond?

• Sleep is a natural state of rest where the body and mind slow down. Dreams are thoughts, images, or feelings that happen during sleep, especially during REM sleep.

• Sleep is a period when the body is completely unconscious and the brain stops working. Dreams are only experienced by animals.

• Sleep is a time when people are always awake but resting. Dreams are plans made for the future.

• Sleep is a state where the body becomes more active. Dreams are only experienced during the day.

Oliver, Priya, and Evelyn are discussing how much sleep people of different age groups should get each night. Can you help them match the recommended hours of sleep to each age group?

• 8–10 hours

• 6–8 hours

• 6–8 hours

• 9–11 hours

• 7–9 hours

Anika is curious about how scientists learn about sleep. She visits a sleep lab where researchers use special machines to record body functions. Anika sleeps in a quiet room with sensors that measure her brain, heart, and breathing activity. How is sleep studied in this scenario?

• Scientists use sleep labs and special machines to record body functions. People sleep in a quiet room with sensors that measure brain, heart, and breathing activity.

• By asking people to describe their dreams every morning.

• By observing people through a window without any equipment.

• By measuring how long people can stay awake without sleeping.

David is considering going to a sleep lab to find out why he has trouble sleeping. What are some limitations he might face at the sleep lab?

• Unfamiliar environment can affect normal sleep. Expensive and time-consuming. Results may not show how a person sleeps at home.

• Sleep labs always guarantee perfect sleep results.

• Sleep labs are free and easily accessible to everyone.

• Sleep labs are only used for exercise studies.

Priya is participating in a sleep study at a hospital. The researchers want to monitor her sleep using physiological measures (polysomnography). Which of the following will they likely use?

• EEG measures:

• Breathing checks:

• Muscle movement (EMG) tracks:

Harper is studying for her biology exam and wants to understand how sleep works. She reads about the different stages of sleep and their characteristics. Which of the following best describes the stages of sleep and their characteristics?

• Stage 1 (Light sleep): Slow eye movement, easy to wake. Stage 2: Body slows down; temperature drops. Stage 3 (Deep sleep): Hard to wake, body repairs itself. REM sleep: Brain active, dreams happen. Eyes move fast.

• Stage 1: Deep sleep, hard to wake. Stage 2: Brain highly active, dreams occur. Stage 3: Light sleep, easy to wake. REM: Body temperature drops, no dreams.

• Stage 1: Body repairs itself, dreams happen. Stage 2: Eyes move fast, easy to wake. Stage 3: Temperature rises, brain inactive. REM: Slow eye movement, hard to wake.

• Stage 1: Brain stops working, no eye movement. Stage 2: Dreams occur, body temperature rises. Stage 3: Easy to wake, body slows down. REM: No dreams, body repairs itself.

Elijah is studying for his biology exam and wants to understand the differences between REM and NREM sleep. Which of the following best explains how REM and NREM sleep differ?

• NREM: 75–80% of sleep; body rests and repairs. REM: 20–25% of sleep; vivid dreams, brain active. Cycle repeats 4–6 times a night.

• NREM: 20–25% of sleep; vivid dreams, brain active. REM: 75–80% of sleep; body rests and repairs. Cycle repeats 1–2 times a night.

• NREM: Only occurs during the day; REM: Only occurs at night.

• NREM: Associated with rapid eye movement; REM: Associated with deep, dreamless sleep.

Emma is learning about sleep for her health class. Her teacher asks, "What is a sleep cycle?"

• One sleep cycle lasts about 90 minutes. A person has 4–6 cycles each night, moving through NREM and REM stages.

• A sleep cycle is a period of deep sleep only, lasting about 30 minutes.

• A sleep cycle refers to the time it takes to fall asleep, usually 10 minutes.

• A sleep cycle is the time spent awake between naps.

Henry is curious about the different types of dreams people can experience. Name and describe types of dreams that Henry might learn about.

• a) Normal – regular dreams. b) Lucid – aware you’re dreaming. c) Nightmares – scary dreams. d) Night terrors – panic during sleep. e) Recurring – same dream repeats. f) False awakenings – think you woke up but didn’t. g) Precognitive – seem to predict the future. h) Healing – bring comfort or peace. i) Daydreaming – awake but mind wanders.

• a) Only nightmares and lucid dreams exist. b) Dreams are always forgotten and have no types. c) Dreams are only about flying or falling. d) There are no types of dreams, just sleep.

Jackson tells his friend about a dream he had while sleeping at night. What kind of dream is Jackson describing?

• A normal dream is a regular dream.

• A normal dream is a nightmare.

• A normal dream is a daydream.

• A normal dream is a lucid dream.