Science Uncovers A Sleep Habit More Important Than Your 8 Hours
- Sep 06, 2024
- Katy Poon
-
Employee Well-beingHealth and WellnessLifestyle and HabitsProductivity TipsSleep Science
- 15 mins reading
We understand the unique challenges employees face in achieving a healthy sleep routine. Stress, work overload, and unpredictable schedules can wreak havoc on your sleep patterns, impacting your well-being, productivity, and focus at work.
Research published in Nature Neuroscience showed that sleep deprivation negatively affects the prefrontal cortex, the part of the brain responsible for decision-making. This can lead to poor judgement calls, missed deadlines, and increased risk-taking behaviour in the workplace.
A Harvard Business Review analysis of workplace data suggests that employees who get less than 7 hours of sleep per night are less productive by as much as 3%. This can translate to millions of lost dollars for businesses each year.
Achieving a good night’s sleep can feel like a luxury. Maintaining a consistent sleep schedule can be challenging, given work deadlines, family obligations, and the constant glow of our devices—on top of everything you’re dealing with at the workplace.
But what if we told you that the key to better sleep might not be how much you sleep but how consistent your sleep is? There’s good news for those of us who struggle to snag eight hours of sleep each night: a recent study suggests that fewer hours a night may not be a guaranteed death sentence— as long as you make consistency your priority.
Understanding Sleep & Its Importance
Sleep is an essential physiological activity that allows the body and mind to relax, mend, and revitalise, sustaining overall health and wellness. While we sleep, the brain consolidates memories, regulates mood, and maintains cognitive functions. Over time, consistent sleep patterns enhance brain health, mood stability, and physical performance. By prioritising a consistent sleep schedule, we can reap the long-term benefits of improved health, productivity, and overall quality of life.
Getting adequate sleep often leads to optimal physical performance, immune function, and hormonal balance. Chronic sleep deprivation can trigger various health concerns, such as impaired cognitive function, emotional swings, and an increased risk of developing long-term illnesses like diabetes, obesity, and cardiovascular disease.
Prioritising quality sleep is crucial for promoting overall health and vitality.
Why Consistency Matters
Consistent sleep helps regulate the body’s internal clock, known as the circadian rhythm, resulting in enhanced sleep quality and duration. Following a regular bedtime routine helps you fall asleep and wake up feeling rested by telling your body it’s time to wind down.
Sleeping six hours every night on a consistent schedule was associated with a lower risk of early death than sleeping eight hours with very irregular habits. This highlights the significance of sleep regularity and duration for overall health and lifespan.
Irregular sleep, including varying bed and wake times and interrupted sleep, increased the risk of premature death by up to 48%.
What Science Says About Sleep Consistency
Sleep duration matters a lot, but consistency is even more important. “People who got long, consistent sleep had the lowest mortality risk”, says Angus Burns, a research fellow at Harvard Medical School who co-wrote the study.
Researchers discovered that “sleep regularity,” meaning going to bed and waking up at consistent times with minimal sleep interruptions, seems to hold more weight than the total amount of sleep you get. Consistently sleeping for six hours a night was linked to a lower risk of early death compared to those who slept eight hours with erratic sleep schedules.
While longer, consistent sleep offers the lowest mortality risk, shorter, regular sleep is still better than longer, inconsistent sleep. This is good news for those struggling to meet recommended sleep hours due to work or family obligations.
“We’ve been missing maybe half of the story,” says Matt Walker, a neuroscientist and director of the Center for Human Sleep Science at the University of California, Berkeley. “Not just how much you sleep but the regularity with which you sleep has now come onto the map and exploded as perhaps the more important thing.”
Even if not perfect, consistent sleep patterns can positively impact health and longevity. According to experts, starting healthy sleep habits early in life yields greater benefits.
*It’s important to note that the study didn’t explore the effects of extremely short sleep durations. Those who get less than three or four hours of sleep, even with consistent timing, may experience worse health outcomes than those who get eight hours of inconsistent sleep.
Sleeping Concerns
Struggling with sleep consistency is common due to busy schedules, stress, and lifestyle factors. Irregular sleep patterns disrupt health and well-being, leading to fatigue and health risks like obesity and mood disorders.
Shift workers and parents often face challenges maintaining a steady sleep routine. Technology worsens the issue with blue light disrupting natural sleep cycles.
Establishing a calming bedtime routine, creating a sleep-friendly environment, and setting consistent bedtimes are crucial to combat these struggles.
Seeking professional help may be necessary for persistent issues. Prioritising sleep and implementing consistent routines can greatly impact overall health and well-being.
According to Psychiatrist.com’s study, which analysed the UK Biobank data from 60,000+ participants and focused on sleep regularity, defined as consistent sleep-wake timing, those in the top 20% for regularity had lower all-cause mortality risk than the bottom 20% with erratic sleep patterns.
Aim For Progress, Not Perfection.
Another study, published in the medical journal QJM in 2023, examined factors like sleep onset difficulties and reliance on sleep medication. The results showed that individuals with the healthiest sleep habits had life expectancies that were 4.7 and 2.4 years longer, respectively, for men and women, compared to those with the worst sleep patterns.
Dr. Frank Qian, a cardiovascular disease fellow at Boston Medical Center and a lead author of that study, said, “The longer you are able to maintain an optimal sleep pattern, the greater the impact on your health and longevity.” Participants didn’t have to be perfect sleepers to reap the benefits. The benefits were cumulative with each additional good habit.
Starr building these good habits today.
8 Ways To Prioritize a Regular Sleep Routine
- Set a regular bedtime and wake-up time to synchronise the body’s internal clock.
- Establish a calming nighttime routine to let the body know when to unwind.
- Enable restful sleep by maintaining a quiet, dark, and cold bedroom.
- Reduce the time spent on screens before bed to avoid disrupting the body’s natural circadian rhythm.
- Avoid drinking caffeine and any alcohol right before bed to avoid upsetting your sleep schedule.
- Exercise regularly, but refrain from doing strenuous activities right before bed.
- Use stress-reduction strategies, including journaling, yoga, and mindfulness.
- Pay attention to what you eat and drink before bed to prevent pain and sleep disruption.
The Take Away
While this research highlights the importance of sleep consistency for overall health, Nilaya recognises the unique challenges of maintaining a regular sleep schedule in today’s work environment. Work overload, stress, and unpredictable schedules can wreak havoc on your sleep routine. We understand the critical connection between sleep and overall well-being, which directly translates to employee productivity and success.
Getting enough sleep isn’t a luxury; it’s a productivity hack. Regular sleep strengthens mental clarity, emotional stability, and even physical performance—all critical for job success. Small improvements in sleep can make a big difference.
Setting up a regular sleep schedule should be prioritised, even with the usual obstacles such as hectic schedules and technology interruptions. Important actions include creating relaxing bedtime routines, improving sleeping conditions, and, if needed, obtaining expert assistance. Prioritising regular sleep can improve quality of life and lifespan, ultimately leading to optimal health and well-being.
Want to take a deeper dive into upgrading your life? Schedule a coaching call to learn how we can help you achieve a healthier, happier, and more productive you.
FAQs
1. Is it okay to occasionally get under eight hours of sleep?
While occasional variations in sleep duration are natural, consistently sacrificing sleep can negatively impact your health. Focus on improving sleep quality to mitigate the effects of occasional sleep deprivation.
2. How can I improve my sleep quality?
Prioritise a consistent sleep schedule, create a relaxing bedtime routine, optimise your sleep environment for darkness and comfort, and limit screen time before bed to enhance sleep quality.
3. Does napping affect sleep quality?
When done strategically, short naps can boost alertness and cognitive function. However, excessive or poorly timed napping can disrupt nighttime sleep patterns and affect overall sleep quality.
References
- The sleep-deprived human brain: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6143346/
- Sleep Well, Lead Better (Harvard Business Review): https://hbr.org/2018/09/sleep-well-lead-better#:~:text=Moreover%2C%20there%20are%20lesser%2Dknown,knowledge%20into%20sustained%20behavior%20change%3F
- Sleep regularity is a stronger predictor of mortality risk than sleep duration: A prospective cohort study:
- Why sleep is essential for health: https://www.medicalnewstoday.com/articles/325353
- Circadian Rhythm: What it is, what shapes it, and why it’s fundamental to getting quality sleep: https://www.sleepfoundation.org/circadian-rhythm
- 10 Reasons to Get More Sleephttps://www.healthline.com/nutrition/10-reasons-why-good-sleep-is-important
Why Sleep Consistency May Be More Important Than Duration: https://www.psychiatrist.com/news/why-sleep-consistency-may-be-more-important-than-duration/#