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Night owl

A night owl, evening person or simply owl, is a person who tends or prefers to be active late at night and into the early morning, and to sleep and wake up later than is considered normal; night owls often work or engage in recreational activities late into the night (in some cases, until around dawn), and sleep until relatively late in the day.

A Young Man Reading by Candlelight, Matthias Stom

The opposite of a night owl is an early bird – a lark as opposed to an owl – which is someone who tends to begin sleeping at a time that is considered early and also wakes early. Researchers traditionally use the terms morningness and eveningness[1] for the two chronotypes or diurnality and nocturnality in animal behavior. In several countries, especially in Scandinavia, one who stays up late is called a B-person, in contrast to an early riser being called an A-person.[2][3]


History edit

While staying up after dark was considered a negative trait, this changed in 17th and 18th century Europe (and subsequently spread beyond) due to the development and implementation of artificial lighting: more domestic lights, added street lighting, and adaptation by the royal and upper social classes.[4] The introduction of chocolate, coffee and tea, and cafes that stayed open through dawn, became part of the new culture.[4]

Etymology edit

 
Owls, like this long-eared owl in Poland, are often nocturnal.

The term is derived from nocturnal habits of owls.[5] Most owls sleep during the day and hunt for food at night.

Characteristics edit

Usually, people who are night owls stay awake past midnight, and extreme night owls may stay awake until just before or even after dawn.[6]

Some night owls have a preference or habit for staying up late, or stay up to work the night shift. Night owls who work the day shift often have difficulties adapting to standard daytime working hours.

Night owls have often been blamed for unpunctuality or attitude problems.[7] Employers, however, have begun to learn to increase productivity by respecting body clocks through flexible working hours,[8] while the Danish "B-Society" of night owls[7] and the American Start School Later movement advocate more school and workplace flexibility for the post-agricultural world.[7]

Some research has found that night owls are more intelligent and creative and more likely to get high-paying jobs than larks, or morning persons. A study among 1,000 adolescents by the University of Madrid found that night owls scored higher than early birds on inductive reasoning tests, which often serve as a proxy for intelligence.[9] However, they lag behind larks in academic performance,[10] and they tend to have unhealthier eating habits, as well as higher rates of smoking.[11]

Some night owls who have great difficulty adopting normal sleeping and waking times may have delayed sleep phase disorder. Morning light therapy may help to shift sleep rhythms for the night owl.[12]

Psychology edit

The night-owl pattern is more prevalent in men than in women.[13] Night-owls are more likely to be single than in long-term relationships.[13] A study done in 2013 suggests that they also more commonly possess dark triad traits.[14]

Factors edit

The tendency to be a night owl exists on a spectrum, with most people being typical, some people having a small or moderate tendency to be a night owl, and a few having an extreme tendency to be a night owl.[15] An individual's own tendency can change over time and is influenced by multiple factors, including:

  • a genetic predisposition, which can cause the tendency to run in families,
  • the person's age, with teenagers and young adults tending to be night owls more than young children or elderly people, and
  • the environment the person lives in, except for the patterns of light they are exposed to through seasonal changes as well as through lifestyle (such as spending the day indoors and using electric lights in the evening).[15]

The genetic make-up of the circadian timing system underpins the difference between early and late chronotypes, or early birds and night owls.[16] While it has been suggested that circadian rhythms may change over time, including dramatic changes that turn a morning lark to a night owl or vice versa,[17][18] evidence for familial patterns of early or late waking would seem to contradict this, and individual changes are likely on a smaller scale.[19]

Prevalence edit

A 2007 survey of over 55,000 people found that chronotypes tend to follow a normal distribution, with extreme morning and evening types on the far ends.[20]

Career options edit

Night owls tend to thrive in careers that do not require working in the early morning. People who want to work in the evening are often employed at restaurants, hotels, entertainment venues, retail stores, and some personal care businesses.[21] Night owls who work the night shift may work in emergency services, in transportation, or at round-the-clock facilities, such as hospitals and some manufacturing plants.[21]

Many businesses that operate in the evening or at night need employees at all levels, from entry-level employees to managers to skilled staff, whenever they are open. For example, most hospitals employ many types of workers around the clock:

Industries that tend to be less favorable to night owls include farming, construction, education, and public utilities. Many employees in these industries start work before 7:00 a.m.[21]

Notable people edit

A list of famous night owls includes:

In popular culture edit

"So we'll go no more a roving
So late into the night
Though the heart be still as loving
And the moon be still as bright."

  • In Pliny the Elder's Natural History, he states Vita vigila est, "to be alive is to be watchful", a military metaphor for keeping watch in the night.[47]
  • For Robert Louis Stevenson, "There is a romance about all those who are abroad in the black hours."[48]
  • In Jayne Ann Krentz's Truth or Dare, "Arcadia and Harry were both creatures of the night. They managed to appear oddly stylish at one-thirty in the morning."[49]
  • British author Hilary Rubinstein wrote: "Blessed are the owls, for they shall inherit the mystery and magic of the night."[50]
  • In the Little River Band song "The Night Owls": "Be strong, find the heart of a night owl falling/Stay up till dawn until the night is gone"[51]

See also edit

References edit

  1. ^ Horne JA, Östberg O (1976). "A self-assessment questionnaire to determine morningness-eveningness in human circadian rhythms". Int J Chronobiol. 4 (2): 97–110. PMID 1027738.
  2. ^ James, Kyle (1 March 2007). "Late Sleepers in Denmark Rally for Societal Change". Deutsche Welle. Retrieved 2009-11-01.
  3. ^ Morris, Chris (14 June 2007). "Late risers unite in Denmark". BBC News Channel. Retrieved 2009-11-01.
  4. ^ a b Benjamin Schwarz (April 2012). "Night Owls". Atlantic Magazine. pp. 82–83.
  5. ^ "Night owl". www.dictionary.com. Retrieved 2018-07-21.
  6. ^ Stefan Klein, Time (2008) p. 20
  7. ^ a b c Greene, Gayle (2008). Insomniac. Berkeley: University of California Press. pp. 345. ISBN 9780520259966. OCLC 85817911.
  8. ^ Klein, p. 33
  9. ^ Nuwer, Rachel. "Night Owl and Early Bird Teens Think Differently". Smithsonian. Smithsonian. Retrieved 4 June 2021.
  10. ^ "IF YOU WANT TO GET AHEAD, BE A NIGHT OWL" by Roger Dobson; THE INDEPENDENT March 24, 2013
  11. ^ Walker, R. J., Christopher, A. N., Wieth, M. B., & Buchanan, J. (2015). Personality, time-of-day preference, and eating behavior: The mediational role of morning-eveningness. Personality and Individual Differences, 77, 13–17.
  12. ^ Laura H. Smith/Charles H. Elliott, Seasonal Affective Disorder for Dummies (2007) p. 73
  13. ^ a b Maestripieri, Dario (2014-01-01). "Night Owl Women are Similar to Men in Their Relationship Orientation, Risk-taking Propensities, and Cortisol Levels: Implications for the Adaptive Significance and Evolution of Eveningness". Evolutionary Psychology. 12 (1): 147470491401200111. doi:10.1177/147470491401200111. ISSN 1474-7049. PMC 10481026.
  14. ^ "New Study Suggests Night Owls Have Psychopathic Traits". ScienceAlert. 2015-03-20. Retrieved 2023-08-15.
  15. ^ a b Roenneberg, Till; Merrow, Martha (23 May 2016). "The Circadian Clock and Human Health". Current Biology. 26 (10): R432–R443. doi:10.1016/j.cub.2016.04.011. PMID 27218855.
  16. ^ Philip Lee Williams, On the Morning (2006) p. 41
  17. ^ Jeff Belanger/Kirsten Dalley, The Nightmare Encyclopedia (2005) p. 83
  18. ^ Walker, R. J., Kribs, Z. D., Christopher, A. N., Shewach, O. R., & Wieth, M. B. (2014). Age, the Big Five, and time-of-day preference: A mediational model. Personality and Individual Differences, 56, 170–174.
  19. ^ Klein, p. 21
  20. ^ Roenneberg, Till; Kuehnle, Tim; Juda, Myriam; Kantermann, Thomas; Allebrandt, Karla; Gordijn, Marijke; Merrow, Martha (December 2007). "Epidemiology of the human circadian clock". Sleep Medicine Reviews. 11 (6): 429–438. doi:10.1016/j.smrv.2007.07.005. hdl:11370/65d6f03a-88cd-405c-a067-4afbc1b9ba9d. ISSN 1087-0792. PMID 17936039. S2CID 11628329.
  21. ^ a b c Torpey, Elka (October 2015). "Career Outlook: Careers for night owls and early birds". U.S. Bureau of Labor Statistics. Retrieved 2018-04-06.
  22. ^ https://www.cbsnews.com/news/new-files-show-adolf-hitlers-daily-routine/
  23. ^ Harold C. Schonberg (June 4, 1973). "Fischer's Friends Wonder if He'll Play Chess Again". New York Times. A night owl who sleeps Most of the day and comes to life in the late afternoon, Fischer often tele phones his friends at 4 A.M. wanting to talk.
  24. ^
  25. ^ https://www.businessinsider.com/vladimir-putin-daily-routine-2017-6
  26. ^ "Authors' sleep patterns & productivity". ShortList. 2014-01-28.
  27. ^ "Castro: his last battle". the Guardian. 2008-02-19. Retrieved 2018-04-19.
  28. ^ a b c d e f g h i j "Daily Rituals: Marcel Proust, Franz Kafka, and other artists who did great work in the wee hours". Slate. 18 April 2013.
  29. ^ "11 Bizarre Sleeping Habits Of Highly Successful People". SF Gate. 2013-11-23.
  30. ^ "Authors' sleep patterns & productivity". shortList. 2014-01-28.
  31. ^ "I studied the sleep habits of some of the world's greatest writers". Insider. Retrieved 10 June 2022.
  32. ^ "The Vulture Transcript: Fran Lebowitz on Sarah Palin, Keith Richards, Her Side Career As a Law & Order Judge, and Much More". Vulture.
  33. ^ "At Night".
  34. ^ "On the Cover: Marilyn Manson". Spin. 2007-05-17. Retrieved 2018-03-11.
  35. ^ Harrison Salisbury (1992). The New Emperors. HarperCollins. p. 103.
  36. ^ Buckley, William F. (2004). Miles Gone Bye: A Literary Autobiography. Regnery Publishing. ISBN 978-0895260895.
  37. ^ Buncombe, Andrew (2 July 2016). "Barack Obama: The nocturnal habits of America's 'night guy' president revealed". The Independent. Archived from the original on 2022-06-21. Retrieved 19 January 2018.
  38. ^ "EXCLUSIVE: Inside Prince's Secret Midnight Outings". Antoinette Bueno.
  39. ^ Rothbard, JoAnn (2000). The Irrepressible Rothbard (PDF). Burlington, CA: Centre for Libertarian Studies. p. xi. ISBN 1-883959-02-0. Retrieved 6 April 2024.
  40. ^ Williams, Alex (25 August 2018). "Maybe your sleep problem isn't a problem". The New York Times. Retrieved 10 June 2022.
  41. ^ McKeen, William (2008). Outlaw Journalist: The Life and Times of Hunter S. Thompson. W. W. Norton & Company. p. 104. ISBN 978-0-393-06192-5. Sandy maintained the house, tiptoeing around until three o'clock in the afternoon, Hunter's usual waking hour.
  42. ^ Carpenter, Humphrey (2014-03-04). J.R.R. Tolkien: A Biography. Houghton Mifflin Harcourt. ISBN 9780547524429.
  43. ^ Elsworth, Catherine (2007-06-13). "Travolta turns night owl to protect privacy". Telegraph.co.uk. Retrieved 2016-03-07.
  44. ^ "FZ: Drowning in the News Bath".
  45. ^ Cahill, Tim (1993) [1986]. Buried Dreams: Inside the Mind of a Serial Killer. Bantam Books. ISBN 978-1-857-02084-7. OCLC 12421532.
  46. ^ Rogers, Mary (May 18, 1997). (PDF). Fort Worth Star-Telegram. Archived from the original (PDF) on November 20, 2012. Retrieved August 18, 2009.
  47. ^ Elder, Pliny the (2015-08-29). Delphi Complete Works of Pliny the Elder (Illustrated). Delphi Classics.
  48. ^ Quoted in Rubinstein p. 211
  49. ^ Jayne Ann Krentz, Truth and Dare (Penguin 2004) p. 258
  50. ^ Hilary Rubinstein, The Complete Insomniac (London 1974) p. 19
  51. ^ The Little River Band All-Time Greatest Hits 1990 CEMA Special Markets

Further reading edit

External links edit

  • Intelligence and Creativity in Night Owls vs. Early Birds[permanent dead link] with several references to different studies
  • Sleep deprivation impacts night owls and early risers differently

night, other, uses, night, disambiguation, person, redirects, here, personality, type, type, personality, this, article, multiple, issues, please, help, improve, discuss, these, issues, talk, page, learn, when, remove, these, template, messages, this, article,. For other uses see Night Owl disambiguation B person redirects here For personality type see Type B personality This article has multiple issues Please help improve it or discuss these issues on the talk page Learn how and when to remove these template messages This article possibly contains original research Please improve it by verifying the claims made and adding inline citations Statements consisting only of original research should be removed May 2022 Learn how and when to remove this message The verifiability of the claims made in this article is disputed Please help improve this article by verifying its references and removing any that are not reliable or do not support the article Relevant discussion may be found on the talk page May 2022 Learn how and when to remove this message Learn how and when to remove this message A night owl evening person or simply owl is a person who tends or prefers to be active late at night and into the early morning and to sleep and wake up later than is considered normal night owls often work or engage in recreational activities late into the night in some cases until around dawn and sleep until relatively late in the day A Young Man Reading by Candlelight Matthias Stom The opposite of a night owl is an early bird a lark as opposed to an owl which is someone who tends to begin sleeping at a time that is considered early and also wakes early Researchers traditionally use the terms morningness and eveningness 1 for the two chronotypes or diurnality and nocturnality in animal behavior In several countries especially in Scandinavia one who stays up late is called a B person in contrast to an early riser being called an A person 2 3 Contents 1 History 1 1 Etymology 2 Characteristics 3 Psychology 4 Factors 5 Prevalence 6 Career options 7 Notable people 8 In popular culture 9 See also 10 References 11 Further reading 12 External linksHistory editWhile staying up after dark was considered a negative trait this changed in 17th and 18th century Europe and subsequently spread beyond due to the development and implementation of artificial lighting more domestic lights added street lighting and adaptation by the royal and upper social classes 4 The introduction of chocolate coffee and tea and cafes that stayed open through dawn became part of the new culture 4 Etymology edit nbsp Owls like this long eared owl in Poland are often nocturnal The term is derived from nocturnal habits of owls 5 Most owls sleep during the day and hunt for food at night Characteristics editUsually people who are night owls stay awake past midnight and extreme night owls may stay awake until just before or even after dawn 6 Some night owls have a preference or habit for staying up late or stay up to work the night shift Night owls who work the day shift often have difficulties adapting to standard daytime working hours Night owls have often been blamed for unpunctuality or attitude problems 7 Employers however have begun to learn to increase productivity by respecting body clocks through flexible working hours 8 while the Danish B Society of night owls 7 and the American Start School Later movement advocate more school and workplace flexibility for the post agricultural world 7 Some research has found that night owls are more intelligent and creative and more likely to get high paying jobs than larks or morning persons A study among 1 000 adolescents by the University of Madrid found that night owls scored higher than early birds on inductive reasoning tests which often serve as a proxy for intelligence 9 However they lag behind larks in academic performance 10 and they tend to have unhealthier eating habits as well as higher rates of smoking 11 Some night owls who have great difficulty adopting normal sleeping and waking times may have delayed sleep phase disorder Morning light therapy may help to shift sleep rhythms for the night owl 12 Psychology editThe night owl pattern is more prevalent in men than in women 13 Night owls are more likely to be single than in long term relationships 13 A study done in 2013 suggests that they also more commonly possess dark triad traits 14 Factors editThe tendency to be a night owl exists on a spectrum with most people being typical some people having a small or moderate tendency to be a night owl and a few having an extreme tendency to be a night owl 15 An individual s own tendency can change over time and is influenced by multiple factors including a genetic predisposition which can cause the tendency to run in families the person s age with teenagers and young adults tending to be night owls more than young children or elderly people and the environment the person lives in except for the patterns of light they are exposed to through seasonal changes as well as through lifestyle such as spending the day indoors and using electric lights in the evening 15 The genetic make up of the circadian timing system underpins the difference between early and late chronotypes or early birds and night owls 16 While it has been suggested that circadian rhythms may change over time including dramatic changes that turn a morning lark to a night owl or vice versa 17 18 evidence for familial patterns of early or late waking would seem to contradict this and individual changes are likely on a smaller scale 19 Prevalence editA 2007 survey of over 55 000 people found that chronotypes tend to follow a normal distribution with extreme morning and evening types on the far ends 20 Career options editNight owls tend to thrive in careers that do not require working in the early morning People who want to work in the evening are often employed at restaurants hotels entertainment venues retail stores and some personal care businesses 21 Night owls who work the night shift may work in emergency services in transportation or at round the clock facilities such as hospitals and some manufacturing plants 21 Many businesses that operate in the evening or at night need employees at all levels from entry level employees to managers to skilled staff whenever they are open For example most hospitals employ many types of workers around the clock non medical staff such as security guards IT specialists cleaning and maintenance workers cooks and food service staff and admissions clerks medical staff such as nurses paramedics radiographers pharmacists and phlebotomists managers for each of the main hospital wards or activities including janitorial supervisors and head nurses Industries that tend to be less favorable to night owls include farming construction education and public utilities Many employees in these industries start work before 7 00 a m 21 Notable people editA list of famous night owls includes Adolf Hitler 22 Bobby Fischer 23 Kanye West 24 Vladimir Putin 25 Charles Bukowski 26 Fidel Castro 27 Michael Chabon 28 Winston Churchill 29 Bob Dylan 28 Gustave Flaubert 28 Glenn Gould 28 Samuel Johnson 28 Carl Jung 30 Franz Kafka 28 31 Fran Lebowitz 32 H P Lovecraft 33 Marilyn Manson 34 E T A Hoffmann Mao Zedong 35 Frank Meyer 36 Barack Obama 37 Prince 38 Marcel Proust 28 Murray Rothbard 39 George Sand 28 Joseph Stalin 40 Hunter S Thompson 41 J R R Tolkien 42 Henri de Toulouse Lautrec 28 John Travolta 43 Linus Torvalds 28 Frank Zappa 44 John Wayne Gacy 45 Van Cliburn 46 In popular culture editIn the Lord Byron poem and Leonard Cohen adaptation So we ll go no more a roving So we ll go no more a roving So late into the night Though the heart be still as loving And the moon be still as bright In Pliny the Elder s Natural History he states Vita vigila est to be alive is to be watchful a military metaphor for keeping watch in the night 47 For Robert Louis Stevenson There is a romance about all those who are abroad in the black hours 48 In Jayne Ann Krentz s Truth or Dare Arcadia and Harry were both creatures of the night They managed to appear oddly stylish at one thirty in the morning 49 British author Hilary Rubinstein wrote Blessed are the owls for they shall inherit the mystery and magic of the night 50 In the Little River Band song The Night Owls Be strong find the heart of a night owl falling Stay up till dawn until the night is gone 51 See also editChronobiology the study of sleep cycles and other time dependent biological systems Circadian rhythm sleep disorder Insomnia the inability to fall asleep or stay asleep Morningness eveningness questionnaire MEQ Munich Chronotype Questionnaire MCTQ Nightlife activities mostly entertainment oriented done between sundown and sunrise Zeitgeber environmental factors such as bright light that reinforce sleep wake cyclesReferences edit Horne JA Ostberg O 1976 A self assessment questionnaire to determine morningness eveningness in human circadian rhythms Int J Chronobiol 4 2 97 110 PMID 1027738 James Kyle 1 March 2007 Late Sleepers in Denmark Rally for Societal Change Deutsche Welle Retrieved 2009 11 01 Morris Chris 14 June 2007 Late risers unite in Denmark BBC News Channel Retrieved 2009 11 01 a b Benjamin Schwarz April 2012 Night Owls Atlantic Magazine pp 82 83 Night owl www dictionary com Retrieved 2018 07 21 Stefan Klein Time 2008 p 20 a b c Greene Gayle 2008 Insomniac Berkeley University of California Press pp 345 ISBN 9780520259966 OCLC 85817911 Klein p 33 Nuwer Rachel Night Owl and Early Bird Teens Think Differently Smithsonian Smithsonian Retrieved 4 June 2021 IF YOU WANT TO GET AHEAD BE A NIGHT OWL by Roger Dobson THE INDEPENDENT March 24 2013 Walker R J Christopher A N Wieth M B amp Buchanan J 2015 Personality time of day preference and eating behavior The mediational role of morning eveningness Personality and Individual Differences 77 13 17 Laura H Smith Charles H Elliott Seasonal Affective Disorder for Dummies 2007 p 73 a b Maestripieri Dario 2014 01 01 Night Owl Women are Similar to Men in Their Relationship Orientation Risk taking Propensities and Cortisol Levels Implications for the Adaptive Significance and Evolution of Eveningness Evolutionary Psychology 12 1 147470491401200111 doi 10 1177 147470491401200111 ISSN 1474 7049 PMC 10481026 New Study Suggests Night Owls Have Psychopathic Traits ScienceAlert 2015 03 20 Retrieved 2023 08 15 a b Roenneberg Till Merrow Martha 23 May 2016 The Circadian Clock and Human Health Current Biology 26 10 R432 R443 doi 10 1016 j cub 2016 04 011 PMID 27218855 Philip Lee Williams On the Morning 2006 p 41 Jeff Belanger Kirsten Dalley The Nightmare Encyclopedia 2005 p 83 Walker R J Kribs Z D Christopher A N Shewach O R amp Wieth M B 2014 Age the Big Five and time of day preference A mediational model Personality and Individual Differences 56 170 174 Klein p 21 Roenneberg Till Kuehnle Tim Juda Myriam Kantermann Thomas Allebrandt Karla Gordijn Marijke Merrow Martha December 2007 Epidemiology of the human circadian clock Sleep Medicine Reviews 11 6 429 438 doi 10 1016 j smrv 2007 07 005 hdl 11370 65d6f03a 88cd 405c a067 4afbc1b9ba9d ISSN 1087 0792 PMID 17936039 S2CID 11628329 a b c Torpey Elka October 2015 Career Outlook Careers for night owls and early birds U S Bureau of Labor Statistics Retrieved 2018 04 06 https www cbsnews com news new files show adolf hitlers daily routine Harold C Schonberg June 4 1973 Fischer s Friends Wonder if He ll Play Chess Again New York Times A night owl who sleeps Most of the day and comes to life in the late afternoon Fischer often tele phones his friends at 4 A M wanting to talk https web archive org web 20160128102635 https twitter com kanyewest status 686060974554497026 https www businessinsider com vladimir putin daily routine 2017 6 Authors sleep patterns amp productivity ShortList 2014 01 28 Castro his last battle the Guardian 2008 02 19 Retrieved 2018 04 19 a b c d e f g h i j Daily Rituals Marcel Proust Franz Kafka and other artists who did great work in the wee hours Slate 18 April 2013 11 Bizarre Sleeping Habits Of Highly Successful People SF Gate 2013 11 23 Authors sleep patterns amp productivity shortList 2014 01 28 I studied the sleep habits of some of the world s greatest writers Insider Retrieved 10 June 2022 The Vulture Transcript Fran Lebowitz on Sarah Palin Keith Richards Her Side Career As a Law amp Order Judge and Much More Vulture At Night On the Cover Marilyn Manson Spin 2007 05 17 Retrieved 2018 03 11 Harrison Salisbury 1992 The New Emperors HarperCollins p 103 Buckley William F 2004 Miles Gone Bye A Literary Autobiography Regnery Publishing ISBN 978 0895260895 Buncombe Andrew 2 July 2016 Barack Obama The nocturnal habits of America s night guy president revealed The Independent Archived from the original on 2022 06 21 Retrieved 19 January 2018 EXCLUSIVE Inside Prince s Secret Midnight Outings Antoinette Bueno Rothbard JoAnn 2000 The Irrepressible Rothbard PDF Burlington CA Centre for Libertarian Studies p xi ISBN 1 883959 02 0 Retrieved 6 April 2024 Williams Alex 25 August 2018 Maybe your sleep problem isn t a problem The New York Times Retrieved 10 June 2022 McKeen William 2008 Outlaw Journalist The Life and Times of Hunter S Thompson W W Norton amp Company p 104 ISBN 978 0 393 06192 5 Sandy maintained the house tiptoeing around until three o clock in the afternoon Hunter s usual waking hour Carpenter Humphrey 2014 03 04 J R R Tolkien A Biography Houghton Mifflin Harcourt ISBN 9780547524429 Elsworth Catherine 2007 06 13 Travolta turns night owl to protect privacy Telegraph co uk Retrieved 2016 03 07 FZ Drowning in the News Bath Cahill Tim 1993 1986 Buried Dreams Inside the Mind of a Serial Killer Bantam Books ISBN 978 1 857 02084 7 OCLC 12421532 Rogers Mary May 18 1997 A Midnight Conversation with Van Cliburn PDF Fort Worth Star Telegram Archived from the original PDF on November 20 2012 Retrieved August 18 2009 Elder Pliny the 2015 08 29 Delphi Complete Works of Pliny the Elder Illustrated Delphi Classics Quoted in Rubinstein p 211 Jayne Ann Krentz Truth and Dare Penguin 2004 p 258 Hilary Rubinstein The Complete Insomniac London 1974 p 19 The Little River Band All Time Greatest Hits 1990 CEMA Special MarketsFurther reading editLouise Miller Careers for Night Owls and Other Insomniacs 2002 J Dunlap et al Chronobiology 2004 McCullough David 1992 Truman Simon amp Schuster p 508 ISBN 978 0671456542 External links editSleep Discrimination Intelligence and Creativity in Night Owls vs Early Birds permanent dead link with several references to different studies Sleep deprivation impacts night owls and early risers differently Retrieved from https en wikipedia org w index php title Night owl amp oldid 1221962445, wikipedia, wiki, book, books, library,

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