These Astronauts Explain Why You Should Get Enough Sleep It will affect your work and relationships if you don't.

By Nina Zipkin

Shutterstock

As NASA works toward one day sending astronauts to deep space, the agency is studying how the long journeys to planets such as Mars could potentially affect our health and well-being.

To that end, the space agency recently completed a 45-day experiment, the Human Exploration Research Analog (HERA) mission. In it, astronauts didn't actually leave Earth, but simulated what it would be like if they did. It required a four-person crew to deal with a number of detriments to their general alertness.

Related: Not Getting Enough Sleep? Blame Your Job.

The astronauts could only sleep five hours every night for five days a week. Then they would get a two-day recovery period where they could sleep eight hours each night.

"The sleep deprivation was really difficult. It really hindered our normalcy," explained HERA crew member James Titus. "We are used to working and living our lives at a higher level. During this mission, the sleep reduction, the no-nap rule and limited caffeine -- went hand in hand to really slow us down."

Related: 20 Unforgettable Moments in Space Exploration

That's how you know they are truly dedicated -- no coffee in the name of science.

According to a statement from NASA, the crew found that in particular, lack of sleep impacted team cohesion, performance and interpersonal relationships.

So if you think that you can't take the time to sleep a full night, take it from some people who really know what it's like to deal with high stress situations. Get some rest -- your brain and your colleagues will thank you.

Nina Zipkin

Entrepreneur Staff

Staff Writer. Covers leadership, media, technology and culture.

Nina Zipkin is a staff writer at Entrepreneur.com. She frequently covers leadership, media, tech, startups, culture and workplace trends.

Want to be an Entrepreneur Leadership Network contributor? Apply now to join.

Editor's Pick

Business Ideas

70 Small Business Ideas to Start in 2025

We put together a list of the best, most profitable small business ideas for entrepreneurs to pursue in 2025.

Business News

Anthropic Is Now One of the Most Valuable Startups of All Time: 'Exponential Growth'

In a new funding round earlier this week, AI startup Anthropic raised $13 billion at a $183 billion valuation.

Starting a Business

The Hardest Parts of Being a Solopreneur (and How I've Learned to Handle Them)

Solopreneurship is on the rise, offering us freedom and independence — but lasting success depends on tackling its unique challenges with strategy.

Science & Technology

How AI Is Turning High School Students Into the Next Generation of Entrepreneurs

As AI reshapes education, students are turning school problems into products and building the future economy.

Leadership

My Business Hit $1 Million — Then a $46,000 Mistake Exposed the Biggest Bottleneck to Explosive Growth

How a costly mistake forced me to confront the real barrier to scaling and the changes that unlocked explosive growth beyond $1 million.