Chronobiol Int July 2021 PMID 32819191

A pilot study investigating the impact of a caffeine-nap on alertness during a simulated night shift.

Stephanie Centofanti, Siobhan Banks, Scott Coussens, Darren Gray, Emily Munro, Johnathon Nielsen, Jillian Dorrian

Mentions

56
Peak: 11 in Sep 2020
across 7 sources since Aug 2020

Extended reach

87,335
potential audience

Total likes

196

Video views

9,896

Mentions per month

Aug 2020 – Nov 2025

Where it's discussed

  • X / Twitter28 posts
  • Instagram8 posts
  • Bluesky5 posts
  • News5 articles
  • Blogs5 articles
  • Facebook3 posts
  • YouTube2 videos

AI synopsis

What people are saying

Discussions about the article reveal widespread curiosity and acknowledgment of scientific backing, as users reference the specific practice of caffeine naps and its benefits. Phrases like 'supported by research studies' and 'may be useful' reflect cautious optimism about its practical impact, while examples of personal adoption and professional references show moderate cognitive engagement and perceived relevance.

AgreementModerate agreement

Most discussions acknowledge the validity of the research findings, with several referencing the potential benefits of caffeine naps supported by scientific studies, indicating moderate to strong agreement.

InterestHigh interest

The posts demonstrate high interest, with many users mentioning personal experiences, curiosity about the research, and discussions about alternative methods, showing active engagement.

EngagementModerate engagement

The engagement depth is moderate, as many users reference specific methodological details like caffeine doses and nap durations, and relate the findings to their personal routines or professional practices.

ImpactModerate impact

The perceived impact of the publication appears modest but positive, with comments suggesting that the practice could be practically useful for shift workers and is supported by multiple studies, indicating a recognition of potential real-world benefits.

Abstract in brief

  • A pilot study examined whether a caffeinenap, where participants consume coffee before a nap, improves alertness and reduces sleep inertia during night shifts.
  • Participants took either caffeine or a placebo before a 30-minute nap at 3:30 AM; caffeine improved alertness and reduced fatigue shortly after waking.
  • The findings suggest that caffeinenaps could help shift workers stay alert and reduce sleep inertia during night shifts, though more research is needed.]

Top posts

Most liked on X and Bluesky
American Academy of Sleep Medicine
@AASMorg · X

Consuming #caffeine immediately before a nap – known as a ”caff nap” – may be useful in improving attention and reducing #sleep inertia in shift workers, according to a recently published pilot study. https://t.co/OATGfqFQUx https://t.co/RYs2SdGoEH

Sep 10, 2020 · 8 likes · 3 shares · 25,923 followers View post →
humanOS.me
@humanOS_me · X

Consuming caffeine immediately before a 30-min nap results in improved vigilant attention and subjective fatigue during a simulated night shift. ☕

Sep 2, 2020 · 5 likes · 1 share · 9,644 followers View post →
Tom LaDore
@Tom_LaDore · X

@WillBlackmon https://t.co/cg5Oa4zhrx

Sep 11, 2021 · 3 likes · 1 share · 663 followers View post →
Dr. Julie Teresa Shapiro
@JulieTheBatgirl · X

@ZJAyres Coffee naps are totally a thing https://t.co/d3ZnqJAYxK

Dec 23, 2022 · 2 likes · 4,041 followers View post →
Shreyas
@shreyasmakes · X

Source: https://t.co/fte8uKc1wx

Aug 16, 2021 · 2 likes · 2,151 followers View post →
Dr. Jonathan Charest
@jocharest1 · X

Caf nap in shift workers may be useful reducing sleep inertia. https://t.co/oHJdWvaPNK

Sep 11, 2020 · 2 likes · 1,032 followers View post →

All mentions

Farhad Afshar, MD
@FarhadAfsharMD · X

Science-backed “coffee nap”: drink ~200 mg caffeine (≈1–2 cups) then nap 20 min. Caffeine peaks as you wake, blocks adenosine, wipes grogginess & sharpens focus—shown in trials with drivers & night-shift workers. ( Video by Grok)☕️

Aug 6, 2025 · 2 likes · 82 followers View post →
better world
@saidalzou · X

@ADHDForReal https://t.co/NrtZvWwb73

Jul 7, 2025 · 498 followers View post →
ccahua.bsky.social
@ccahua.bsky.social · Bluesky

Pilot 30 mins, but 20 works too pubmed.ncbi.nlm.nih.gov/32819191/ #countermeasures #coffee #caffeine #CoffeeNap #sleep

Nov 23, 2024 · 1 like View post →
EverNewEcoN
@evernewecon · X

i'm back ....100% but not "really" back till later still i was up last night then there was the crash then there was friends @ 10 then it was https://t.co/8UXBVLPLfE https://t.co/bbv7IEWfzS https://t.co/VR5eNK5TUN https://t.co/HMId9ApLBn https://t.co/cXx5N3qwBh https://t.co/eRzM4RfHAs

Oct 29, 2024 · 695 followers View post →
EverNewEcoN
@evernewecon · X

(SiestaIsNotSleepingInsteadOfWorkIt'sThenAbout WorkWellAfter5) ThisIsAbout"Regulators"In A ParadigmMoreThan https://t.co/VR5eNK5TUN ButThatCanBeRelated https://t.co/rznG44BrfV https://t.co/ubopS4wlQ4 https://t.co/ah17E8sEoU https://t.co/zCpkNbvgsi https://t.co/u5As2l6H6l -sa-*/p

Oct 29, 2024 · 695 followers View post →
EverNewEcoN
@evernewecon · X

https://t.co/Hh7Bznyhee https://t.co/8DDLIf6hrd https://t.co/QN5onFJ51D https://t.co/4IjEIPLpS0 https://t.co/RJBJgVpXLi all part of emergent stages/concentric circles population size/longevity https://t.co/Q8pY1Fbmkf https://t.co/VR5eNK5TUN ADVANCES PARADIGM They work past https://t.co/roLiAHPrY6

Oct 6, 2024 · 695 followers View post →
Peter Ludemann
@PeterLudemann · X

@GaijinMommy https://t.co/vQM422TRLK

Jul 11, 2024 · 213 followers View post →
Just another lobbyist
@stefanturk.bsky.social · Bluesky

Yeah, apparently the nomenclature is just caffeine nap? pubmed.ncbi.nlm.nih.gov/32819191/

May 28, 2024 View post →
Phoenix
@burningphoenix.bsky.social · Bluesky

pubmed.ncbi.nlm.nih.gov/32819191/

Jan 30, 2024 · 1 like View post →
Phoenix
@burningphoenix.bsky.social · Bluesky

pubmed.ncbi.nlm.nih.gov/32819191/

Jan 30, 2024 · 2 likes · 1 share View post →
Monica Sircar (she/her)
@phenomonica.bsky.social · Bluesky

Isn’t it? I started taking “coffee naps” after reading that several research studies supported the practice - eg potentially very STEM? pubmed.ncbi.nlm.nih.gov/32819191/

Aug 26, 2023 View post →
Bryant
@raisinsandpenis · X

@soprettylina Hear me out. There are two other ways to nap. I’ve tried this one https://t.co/tQaXEtoyIk (drinking coffee r right before a nap OR sleeping in the floor with you legs elevated

Aug 25, 2023 · 126 followers View post →
Jorge Cansas
@CansasJorge · X

@katanadelsensei @CristianIzara https://t.co/AiNoDxB3bs

Apr 6, 2023 · 23 followers View post →
Jorge Cansas
@CansasJorge · X

@katanadelsensei @zuga1384 https://t.co/AiNoDxBB10

Apr 6, 2023 · 23 followers View post →
MillennialJim
@jimtatarakis · X

@Aella_Girl caffeine + 20 minute nap after consumption, gives you a power nap and time for caffeine to take effect! 1/2 https://t.co/FJoB4Hlcfm

Feb 17, 2023 · 54 followers View post →
Dr. Julie Teresa Shapiro
@JulieTheBatgirl · X

@ZJAyres Coffee naps are totally a thing https://t.co/d3ZnqJAYxK

Dec 23, 2022 · 2 likes · 4,041 followers View post →
SkeeloKing
@SkylerMMAnews · X

RT @Tom_LaDore: @WillBlackmon https://t.co/cg5Oa4zhrx

Sep 11, 2021 · 1 share · 530 followers View post →
Tom LaDore
@Tom_LaDore · X

@WillBlackmon https://t.co/cg5Oa4zhrx

Sep 11, 2021 · 3 likes · 1 share · 663 followers View post →
Shreyas
@shreyasmakes · X

Source: https://t.co/fte8uKc1wx

Aug 16, 2021 · 2 likes · 2,151 followers View post →
Vulcan, trapped on earth
@JosephSleepdoc · X

@londyloo @SpencerWilsonMD Another reference https://t.co/XLCyRJVJRj

May 28, 2021 · 67 followers View post →
Altamiro Bottino
@BottinoAltamiro · X

A coffee and catnap keep you sharp on the nightshift https://t.co/mCWxolRgZb https://t.co/YanhSSpWkV https://t.co/5lCEGKekyv

Oct 15, 2020 · 94 followers View post →
Portlandsleepdoc
@PortlandsleepMD · X

The "caf nap" described in this study was common practice while on overnight call in my residency: https://t.co/e45wihoLLQ

Sep 18, 2020 · 3,794 followers View post →
Dr. Jonathan Charest
@jocharest1 · X

Caf nap in shift workers may be useful reducing sleep inertia. https://t.co/oHJdWvaPNK

Sep 11, 2020 · 2 likes · 1,032 followers View post →
Fustbariclation
@fustbariclation · X

Recently, I've been finding that a mug of strong coffee + cocoa in the morning makes me sleepy - which seems a good thing, according to this research, if I turn it into a 'caffeine nap' https://t.co/P0RHyWmGOD

Sep 11, 2020 · 2,159 followers View post →
Sleep Nebraska
@sleep_nebraska · X

#RT @AASMorg: Consuming #caffeine immediately before a nap – known as a ”caff nap” – may be useful in improving attention and reducing #sleep inertia in shift workers, according to a recently published pilot study. https://t.co/6gO1Bnghhk https://t.co/WvQfkU93Y6

Sep 10, 2020 · 1 like · 1 share · 74 followers View post →
American Academy of Sleep Medicine
@AASMorg · X

Consuming #caffeine immediately before a nap – known as a ”caff nap” – may be useful in improving attention and reducing #sleep inertia in shift workers, according to a recently published pilot study. https://t.co/OATGfqFQUx https://t.co/RYs2SdGoEH

Sep 10, 2020 · 8 likes · 3 shares · 25,923 followers View post →
Paul Naish
@PaulNaish78 · X

RT @ahaley308: "Compared to placebo, the caffeine-nap resulted in improved vigilant attention and subjective fatigue in the 45 min post-nap…

Sep 9, 2020 · 1 share · 22,163 followers View post →
Alex DeVoe
@ahaley308 · X

"Compared to placebo, the caffeine-nap resulted in improved vigilant attention and subjective fatigue in the 45 min post-nap opportunity. The caffeine-nap may be useful in reducing sleep inertia in shift workers who nap on nightshift." ☕️ https://t.co/GL0m0hN3ny

Sep 9, 2020 · 1 like · 1 share · 168 followers View post →
Elissaios Karageorgiou
@E_Karageorgiou · X

Caffeine-nap improved alertness compared to decaf drink prior to napping during a simulated night shift https://t.co/2I7RBhbNhw

Sep 5, 2020 · 1 like · 369 followers View post →
Ma ri us
@Kizamius · X

RT @humanOS_me: Consuming caffeine immediately before a 30-min nap results in improved vigilant attention and subjective fatigue during a s…

Sep 2, 2020 · 1 share · 6 followers View post →
humanOS.me
@humanOS_me · X

Consuming caffeine immediately before a 30-min nap results in improved vigilant attention and subjective fatigue during a simulated night shift. ☕

Sep 2, 2020 · 5 likes · 1 share · 9,644 followers View post →
Laura S. Kelleher
@LifeEarthEnvLSK · X

Free Access Through October: A pilot study investigating the impact of a caffeine-nap on alertness during a simulated night shift https://t.co/JEAD4npgUZ #coffee #fatigue #fatiguedisappears #nap #NightShift #academictwitter

Sep 2, 2020 · 753 followers View post →
Uğur Yiğit Karataş
@scisophia · X

Bunu deneyen grup plasebo grubuna göre uyanıklık ve performansta belirgin düzeyde avantaj elde etti. https://t.co/V0NWLSWQ4c

Aug 28, 2020 · 473 followers View post →
腦力場Brainfield by Dr. Cheng | Kaohsiung - Facebook
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... -10), 1469–1473. https://doi. org/10.1080/07420528.2020.1804922 · May be an image of ‎coffee cup and ‎text that says '‎ککن ·

Dec 14, 2025 View →
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Um dia desses.
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你知道嗎?足球員的大腦就像「雷達掃描器」,電競選手的腦袋則像 ...
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