Below are 20 questions with answers at the end to gamify learning about sleep with family, friends, or work peers.

1. How many hours of sleep per night do you suspect the average American gets during the week?

2. How do you think this ranked with the other countries: Japan, UK, Germany, Canada, Mexico?

3. How about on the weekend: U.S., Japan, U.K., Germany, Canada, Mexico?

4. Questionnaire respondents were asked: How much sleep do you need to function best? What do you suspect they answered: U.S., Japan, U.K., Germany, Canada, Mexico?

5. What do you think differences existed amongst different countries? How does culture effect sleep?

6. How many hours of sleep are recommended for adults ages 18-64?

7. How about older adults ages 65+?

8. In discussion about sleep, what is a Lark? A Night Owl? A Hummingbird?

9. Of those three different types which do you think is most common?

10. How many minutes is one sleep cycle?

11. Which cycle phase is deepest and considered to be most restorative: Deep, Non-Rapid Eye Movement (non-REM), or REM?

12. How many Americans watch TV 1 hour before going to bed?

13. How many Americans use their computer, laptop, or tablet one hour before going to bed?

14. What is sleep onset insomnia?

15. What is sleep maintenance insomnia?

16. What percentage of 7,428 U.S. employees had insomnia?

17. Is decreased work performance due to presenteeism or absenteeism?

18. How many total days of productivity does the average employee lose per year due to presenteeism?

19. How much does presenteeism cost nation-wide?

20. In response to the statement, "I feel more relaxed in my bed if my room has a fresh, pleasant scent," what percentage agreed: U.S., Canadians, Japan, U.K., Germany, Mexico.

Below are the answers and research findings to the questions above. 

The National Sleep Foundation conducted an International Bedroom Poll in 2013, comparing respondents in the U.S. to respondents in Canada, Germany, Japan, and the United Kingdom. 1,500 telephone interviews were conducted with a random selection of each of the above populations, with adults ages 25-55.

1. 6 hours 31 minutes

2. Japan, 6 hours 22 minutes; U.K., 6 hours 49 minutes; Germany, 7 hours 1 minute; Canada, 7 hours 3 minutes; Mexico, 7 hours 6 minutes.

3. U.S., 7 hours 22 minutes; Japan, 7 hours 12 minutes; U.K., 7 hours 26 minutes; Mexico, 7 hours 46 minutes; Canada, 7 hours 52 minutes; Germany, 8 hours.

4. U.S., 7 hours 13 minutes; Japan, 6 hours 58 minutes; U.K., 7 hours 20 minutes; Canada, 7 hours 22 minutes; Germany, 7 hours 31 minutes; Mexico, 8 hours 15 minutes.

5. Answers revolve around demographics and environment, including age, gender, socioeconomic, status, and educational level.

6. 7-9 hours (National Sleep Foundation statistics).

7. 7-8 hours (National Sleep Foundation statistics).

8. Lark, early riser; Night Owl, late to bed; Hummingbird, those in-between. Researchers maintain that this is largely genetic and a result of the speed of your internal circadian clock located within the suprachiasmatic mucleus in the brain, near the region where our optic nerves cross. Larks have fast clocks, and Night Owls have slow clocks. Our clocks may change thoughour our life.

9. Hummingbirds, 70%; Larks, 10%; Night Owls, 20%.

10. 90 minutes

11. Non-REM. Regardless of what time you go to sleep, non-REM sleep dominates at night while REM sleep dominates as daytime approaches. Both are important.

12. 73% Americans watch TV 1 hour before bed time (according to the 2013 International Bedroom Poll).

13. 51% use a computer, laptop, tablet 1 hour before bed time (according to the 2013 International Bedroom Poll).

14. Difficulty falling asleep. This is more likely to occur in younger adults and because the body's internal clock isn't in sync with the natural light-dark cycles of the day.

15. Difficulty staying asleep. This typically affects people over the age of 40. Typical causes include stress, anxiety, depression, menopause (hot flashes), alcohol consumption, and medical issues (chronic pain; a snoring partner). Early morning awakening is also more common in older adults and can signify depression.

16. 23% had insomnia according to a 2011 study from Harvard Medical School, as assessed by the Brief Insomnia Questionnaire.

17. Presenteeism. The World Health Organization and Work Performance Questionnaire (HPQ) determined this. Presenteeism is low on the job work performance, occurring when we attend work even though we are sick.

18. 11 days

19. $63 Billion

20. U.S. 78%; Canadians, 78%; Japan, 41%; U.K., 86%; Germany, 90%; Mexico, 92% (International Bedroom Poll).