Get my wind-down tips to your inbox: https://nessyhill.myflodesk.com/winddown The Sleep Habits Guide: https://nessyhill.myflodesk.com/guide Or sign up to my email list (for freebies and offers): https://nessyhill.myflodesk.com/youtube What does white noise, pink noise, green...
Get my wind-down tips to your inbox: https://nessyhill.myflodesk.com/winddown
The Sleep Habits Guide: https://nessyhill.myflodesk.com/guide
Or sign up to my email list (for freebies and offers): https://nessyhill.myflodesk.com/youtube
What does white noise, pink noise, green noise, brown noise... actually do to your sleep? What does the research say on whether it helps or harms our shut eye? Let's find out.
CHAPTERS
0:00 Headlines say noise machines are ruining your sleep
0:44 Get my free wind-down tips
0:53 What is pink noise?
1:42 The evidence on coloured noise and sleep
4:14 The four problems
7:30 The new study
9:55 The results
11:42 A very important detail
12:46 What have we found?
13:32 My thoughts
15:53 The Sleep Habits Guide
📚 RESEARCH CITED
1. Riedy, S. M., Smith, G. M., Rocha, S., & Basner, M. (2021). Noise as a sleep aid: A systematic review. Sleep Medicine Reviews, 55, Article 101385. https://doi.org/10.1016/j.smrv.2020.101385
2. Capezuti, E., Pain, K., Alamag, E., Chen, X., Philibert, V., & Krieger, A. C. (2022). Systematic review: auditory stimulation and sleep. Journal of Clinical Sleep Medicine, 18(6), 1697–1709. https://doi.org/10.5664/jcsm.9860
3. Basner, M., Smith, M. G., Cordoza, M., Kayser, M. S., Carlin, M., Ecker, A. J., Gilad, Y., Park-Chavar, S., Rennie, K., Schneller, V., Walsh, S., Shou, H., Cao, Q., Younes, M., Aeschbach, D., & Jones, C. W. (2026). Efficacy of pink noise and earplugs for mitigating the effects of intermittent environmental noise exposure on sleep. Sleep, Advance online publication. https://doi.org/10.1093/sleep/zsag001
ABOUT
BrainCraft is hosted by Dr Vanessa Hill, a sleep scientist whose research focuses on sleep habits and bedtime procrastination. All my videos have some kind of sleep or health science for tired humans, and are grounded in peer-reviewed research.
📬 Newsletter: https://nessyhill.myflodesk.com/youtube
📝 Substack: https://nessyhill.substack.com
📸 Instagram: https://www.instagram.com/nessyhill/
🌐 Website (resources): https://nessyhill.com
#WhiteNoise #PinkNoise #NoiseMachine #SleepScience #RevengeBedtimeProcrastination #SleepHabits #Sleep #Health #Research
The Bedtime Procrastination Masterclass: https://nessyhill.myflodesk.com/masterclass And sign up to my email list (for freebies and offers): https://nessyhill.myflodesk.com/youtube
The Bedtime Procrastination Masterclass: https://nessyhill.myflodesk.com/masterclass
And sign up to my email list (for freebies and offers): https://nessyhill.myflodesk.com/youtube
All the new things I mentioned in this video: https://nessyhill.com/resources-coaching DO THE QUIZ! https://nessyhill.com/quiz Sign up to my email list (for freebies and offers): https://nessyhill.myflodesk.com/youtube And the individual links if you'd prefer: The Bedtime...
All the new things I mentioned in this video: https://nessyhill.com/resources-coaching
DO THE QUIZ! https://nessyhill.com/quiz
Sign up to my email list (for freebies and offers): https://nessyhill.myflodesk.com/youtube
And the individual links if you'd prefer:
The Bedtime Procrastination Masterclass: https://nessyhill.myflodesk.com/masterclass
The Sleep Habits Guide: https://nessyhill.myflodesk.com/guide
The Sleep Habit Audit (1-on-1 call) : https://nessyhill.myflodesk.com/audit
I spent five years researching bedtime procrastination, and this is the most unexpected thing I found.
If you've doom-scrolled past midnight knowing you'll regret it, you're in good company! It's really common. And a lot of the standard advice (just go to bed earlier; put your phone in another room) misses what's actually going on. In this video I unpack two of my own studies [citations and links below]. I hope it's helpful :)
CHAPTERS
0:00 The hour before bed is strangely special
1:07 What bedtime procrastination actually is
2:05 I ran a clinical trial to reduce bedtime procrastination
9:14 I asked people why they stay up late
13:38 An announcement!
RESEARCH CITED
Hill, V. M., Ferguson, S. A., Rebar, A. L., Meaklim, H., & Vincent, G. E. (2025). A randomised pilot trial for bedtime procrastination: Examining the efficacy and feasibility of the Reducing Evening Screen Time online intervention (REST-O). Sleep Medicine, 129, 306–315. https://doi.org/10.1016/j.sleep.2025.02.043
Hill, V. M., Ferguson, S. A., Vincent, G. E., & Rebar, A. L. (2024). 'It's satisfying but destructive': A qualitative study on the experience of bedtime procrastination in new career starters. British Journal of Health Psychology, 29(1), 185–203. https://doi.org/10.1111/bjhp.12694
ABOUT
BrainCraft is hosted by Dr Vanessa Hill, a sleep scientist whose research focuses on sleep habits and bedtime procrastination. All my videos have some kind of sleep or health science for tired humans, and are grounded in peer-reviewed research.
📬 Newsletter: https://nessyhill.myflodesk.com/youtube
📝 Substack: https://nessyhill.substack.com
📸 Instagram: https://www.instagram.com/nessyhill/
🌐 Website (resources): https://nessyhill.com
#BedtimeProcrastination #SleepScience #RevengeBedtimeProcrastination #SleepHabits #Sleep #Health #Research
Check out my friend's new channel @drnaomikohbelic. I worked with her on the new Bimbo Biology series and the latest ep on blue light glasses is 🔥 THANK YOU!
Check out my friend's new channel @drnaomikohbelic. I worked with her on the new Bimbo Biology series and the latest ep on blue light glasses is 🔥 THANK YOU!
What (else) are you watching on YouTube to wind-down? #samsungpartner REFERENCES 📚👇 New study: The complex association between bedtime screen use and adult sleep health [Sleep Health, 2025] https://pubmed.ncbi.nlm.nih.gov/40713469/ Major review: A bidirectional model of sleep...
What (else) are you watching on YouTube to wind-down? #samsungpartner
REFERENCES 📚👇
New study: The complex association between bedtime screen use and adult sleep health [Sleep Health, 2025] https://pubmed.ncbi.nlm.nih.gov/40713469/
Major review: A bidirectional model of sleep and technology use: A theoretical review of How much, for whom, and which mechanisms [Sleep Medicine Reviews, 2024] https://pubmed.ncbi.nlm.nih.gov/38657359/
Consensus statement: The impact of screen use on sleep health across the lifespan: A National Sleep Foundation consensus statement [Sleep Health, 2024] https://www.sleephealthjournal.org/article/S2352-7218%2824%2900090-1/fulltext
Older e-reader study: Evening use of light-emitting eReaders negatively affects sleep, circadian timing, and next-morning alertness [PNAS, 2024]: https://pmc.ncbi.nlm.nih.gov/articles/PMC4313820/
It’s World Sleep Day and I worked on with Samsung on a new Sleep Apnea article -- please check it out at https://samsungmobilepress.com/articles/samsung-sleep-apnea-study-for-world-sleep-day-2026
Wearables like the Galaxy Watch8 and Galaxy Ring can help bridge the gap between the research and our actual lives – features like Bedtime Guidance and Sleep Coaching can help to build a consistent rhythm with our sleep schedule by helping us monitor our behaviour and make the changes we want. And I like wearables to help us make small changes to sleep in a way that feels less like an uphill battle :)
These are the products shown in this video (Galaxy Ring and Galaxy Watch8):
bit.ly/GalaxyWatch8BrainCraft
bit.ly/GalaxyRingBrainCraft
#GalaxyWatch8 #GalaxyRing
Screen 'time' is... out? My thoughts on the American Academy of Pediatrics new screen guidance for kids. I kinda made this for my parent friends who were asking about it? I hope it's helpful? Link to statement:...
Screen 'time' is... out? My thoughts on the American Academy of Pediatrics new screen guidance for kids. I kinda made this for my parent friends who were asking about it? I hope it's helpful?
Link to statement: https://publications.aap.org/pediatrics/article/157/2/e2025075320/206129/Digital-Ecosystems-Children-and-Adolescents-Policy
New research shows most of our behaviour is both automatic and intentional at the same time. Here's what that means for your daily habits and New Year’s Resolutions. (Long video here https://youtu.be/WgNBanbztNY) And thanks to A/Prof Amanda Rebar, habits researcher...
New research shows most of our behaviour is both automatic and intentional at the same time. Here's what that means for your daily habits and New Year’s Resolutions. (Long video here https://youtu.be/WgNBanbztNY)
And thanks to A/Prof Amanda Rebar, habits researcher extraordinaire.
How habitual is everyday life? An ecological momentary assessment study: https://www.tandfonline.com/doi/full/10.1080/08870446.2025.2561149
I recently failed a running resolution despite having a PhD in habits 🤦🏻♀️ #SamsungPartner BUT, it turns out that failure makes sense. New research shows most of our behaviour is both automatic and intentional at the same time. Here I explain what that means for your daily...
I recently failed a running resolution despite having a PhD in habits 🤦🏻♀️ #SamsungPartner
BUT, it turns out that failure makes sense. New research shows most of our behaviour is both automatic and intentional at the same time. Here I explain what that means for your daily habits and New Year’s Resolutions.
Thanks to Samsung for supporting me and the channel. Here are the products shown in this video (Galaxy Ring and Galaxy Watch8):
https://bit.ly/SamsungGalaxyWatch8BC
https://bit.ly/SamsungGalaxyRingBC
#GalaxyWatch8 #GalaxyRing
And Thanks to A/Prof Amanda Rebar, habits researcher extraordinaire.
How habitual is everyday life? An ecological momentary assessment study: https://www.tandfonline.com/doi/full/10.1080/08870446.2025.2561149
Comment 🥔 because it's one of the best emojis? Potato bed can encourage us to rest and destress... Ofc balance is key but I find the negative news cycle frustrating 🥔
Comment 🥔 because it's one of the best emojis?
Potato bed can encourage us to rest and destress... Ofc balance is key but I find the negative news cycle frustrating 🥔