Sleep Tight, Code Right 💤

Luis Fernandes
Marionete
Published in
3 min readJun 5, 2024

Sleep is one of the most important factors for health, productivity, and well-being. Yet in our fast-paced, always-on world, many people, especially busy professionals are not prioritizing sleep enough.

I must confess, writing this article feels a bit ironic as I’ve personally struggled with maintaining healthy sleep habits for years — beginning in university and continuing into my career as a data engineer. I would often stay up late working on projects, then struggle to wake up in the morning feeling rested. My productivity and mood would suffer as a result.

Image from Freepick.com 💤

“Why We Sleep” by Matthew Walker

It wasn’t until I read Matthew Walker’s eye-opening book “Why We Sleep” that I realized the profound importance of sleep and how it was impacting my life. As Walker explains:

“The shorter you sleep, the shorter your life. The leading causes of disease and death in developed nations — diseases that are crippling health-care systems, such as heart disease, cancer, Alzheimer’s disease, diabetes — all have causal links to a lack of sleep.”

Reading this book was a wake-up call for me. I realized that sleep is not a luxury, but a biological necessity that is just as important as diet and exercise for physical and mental health. Chronic sleep deprivation has been linked to a wide range of negative health outcomes, from increased risk of heart disease and stroke to weakened immune function and weight gain, just to name some.

The Vital Role of Sleep for Software/Data Engineers

For software/data engineers, sleep is especially critical for optimal cognitive performance. Lack of sleep impairs focus, memory, creativity, and problem-solving ability. As Walker notes:

“Sleep, and in particular REM sleep, is the only time our brain has a chance to go over the day’s events, solidify the memories, and turn those fragmented facts into understanding.”

Pulling an all-nighter to meet a deadline may seem productive at the moment, but it will likely lead to more errors and slower progress in the long run. Consistently getting 7–9 hours of high-quality sleep per night is ideal for maintaining peak mental performance.

Since making sleep a priority and implementing some of the healthy habits I’ll outline below, I’ve noticed a significant improvement in my work as a data engineer. I’m more focused, creative, and productive during the day and I also feel better physically and mentally overall.

Establishing Healthy Sleep Habits

So how can software/data engineers ensure they are getting enough sleep? Here are my personal tips (it worked for me, it might work for you 🤷🏻‍♂️):

  • Set a consistent sleep schedule: Go to bed and wake up at the same time each day, even on weekends (okay, let’s say a little cheat on weekends won’t hurt). This helps regulate your body’s internal clock.
  • Create a relaxing bedtime routine: Engage in calming activities like reading, stretching, or meditation to signal to your body that it’s time to wind down.
  • Optimize your sleep environment: Keep your bedroom cool, dark, and quiet. Avoid screens (TV, phone, computer) for at least an hour before bed.
  • Limit caffeine and alcohol: Caffeine is a stimulant that can disrupt sleep — yeah, I know, there’s no code without coffee, I feel you, just try to avoid it after lunchtime. Regarding alcohol, well it may help you fall asleep faster (😅) but leads to more fragmented sleep later in the night.
  • Exercise regularly: Overall any kind of physical activity promotes better sleep, but avoid intense workouts close to bedtime as they can be stimulating.

Final Thoughts

I know it can be challenging to make sleep a priority, especially with the demanding nature of roles such as software/data engineering, but I encourage you to make the effort. Your mind and body will thank you, and you may just find that you’re a better professional, and a happier person, for it.

As Matthew Walker eloquently states:

“Sleep is the single most effective thing we can do to reset our brain and body health each day — Mother Nature’s best effort yet at contra-death.”

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