Can we get away with 6 hours sleep a night?

The Importance of Adequate Sleep for Health and Productivity

Date: 2018-08-06
Reading Time: 2 min

In the fast-paced modern world, some individuals mistakenly believe that reducing sleep can lead to more productive time. However, the reality is not so straightforward. The Sleep Foundation’s panel of eighteen sleep experts has determined that individuals between the ages of 18-64 require 7-9 hours of sleep each night to function optimally.

An article by James Hamblin in the Atlantic magazine discusses various sleep-related issues and the consequences of not getting enough rest. A common question people have is “how much sleep do I really need?” This question is complex, much like asking “how long is a piece of string?” Several factors come into play, particularly the quality of sleep. Issues such as sleep apnea or a partner’s snoring can significantly disrupt sleep, potentially leading to at least an hour of lost restful sleep. This can result in daytime fatigue, decreased work performance, irritability, and a higher risk of accidents.

Another perspective is to consider the relationship between sleep duration and overall health. A Finnish study from 2014 involving 3,000 participants found that the optimal amount of sleep for the least number of sick days was about 7.7 hours per night, which aligns with the recommended sleep duration. Additionally, a meta-study by the American Academy of Sleep Medicine and the Sleep Research Society confirms that most adults perform best after getting seven to nine hours of sleep. Maintaining a consistent sleep schedule is also beneficial. When sleep falls below seven hours, daily functions are impaired, and consistently getting less than six hours of sleep increases the risk of health issues.

There’s a concerning trend where individuals underestimate the negative effects of reduced sleep on decision-making, particularly among those in critical roles such as shift workers, truck drivers, pilots, and military personnel.

A survey conducted by the National Sleep Foundation involving 1,500 participants revealed that work obligations are a significant cause of sleep deprivation during the week. Late-night report writing, multiple jobs, long commutes, and time spent in traffic or waiting areas all contribute to insufficient sleep. The survey found that 45% of respondents did not get the recommended amount of sleep during the week, averaging six and a half hours per night, which is about 20% below the recommended range. On days off, the percentage of people getting more sleep increased to over 71%, with an average of seven hours and twelve minutes of sleep, still 10% below the ideal average.

Ultimately, there is no substitute for getting 7-9 hours of sleep each night, especially during one’s most productive years. Attempting to skimp on sleep is more likely to decrease work output rather than enhance it. Prioritizing good sleep is essential.