True or False: Everyone needs exactly 8 hours of sleep every night.
False. Most adults need 7–9 hours, but individual needs vary.
What should you do with your wake-up time—even on weekends—to improve sleep?
Keep it as consistent as possible.
During which stage of sleep do most vivid dreams occur?
REM (Rapid Eye Movement) sleep.
Which common beverage contains caffeine: coffee, herbal tea, or milk?
Coffee.
Approximately how much of our lives do we spend sleeping?
About one-third.
True or False: You can completely make up for lost sleep by sleeping in on the weekend.
False. Sleeping in may help you feel better temporarily, but it doesn't fully reverse chronic sleep deprivation.
Name one bedroom condition that promotes better sleep.
Cool, dark, quiet, and comfortable.
True or False: Everyone dreams, even if they don't remember it.
True.
About how many hours can caffeine stay in your body?
Around 6 hours (its half-life is about 3–7 hours, depending on the person).
What hormone helps regulate the sleep-wake cycle?
Melatonin.
Many people think alcohol helps them sleep. What effect does it actually have?
It may help you fall asleep faster, but it reduces sleep quality and disrupts REM sleep.
What type of light from phones and tablets can make it harder to fall asleep?
Blue light.
Approximately how many dreams does the average person have each night?
About 4–6 dreams.
Which meal is generally better before bed: a heavy, spicy meal or a light snack?
A light snack.
What is the body's internal 24-hour clock called?
The circadian rhythm.
True or False: Snoring is always harmless.
False. Older adults generally still need about 7–8 hours, though sleep patterns often change with age.
Which is better before bed: vigorous exercise or a relaxing routine?
A relaxing bedtime routine (vigorous exercise close to bedtime may keep some people awake).
What is a nightmare?
A disturbing dream that often wakes the sleeper.
Besides coffee, name two other common sources of caffeine.
Tea, soda, energy drinks, chocolate, some medications.
What percentage of adults are recommended to get 7–9 hours of sleep each night?
Most healthy adults (the recommended range is 7–9 hours).
True or False: Older adults need much less sleep than younger adults.
False. Older adults generally still need about 7–8 hours, though sleep patterns often change with age.
Name two healthy bedtime habits.
reading a book, stretching, meditation, journaling, taking a warm shower, dimming lights, or avoiding screens.
What is lucid dreaming?
A dream in which the dreamer is aware they are dreaming and may be able to influence the dream.
Why can drinking alcohol before bed lead to poor sleep?
It disrupts normal sleep cycles, especially REM sleep, and can increase nighttime awakenings.
What sleep stage is especially important for learning, memory, and emotional processing?
REM sleep (although deep sleep also plays an important role in memory and physical restoration).