If you have ever had to board a long-haul plane scheduled to travel at night, you know that trying to sleep on an aircraft is often a nightmare, even more so if you’re over 6 feet tall and decide to opt for an economy seat.

Human bodies aren’t made to rest with constant background noise, sitting instead of lying down in a pressurized cabin thousands of feet above sea level. Yet, this is just the beginning. Cabin air is often very dry, leading passengers to experience dehydration without noticing. In addition, our circadian clock, an internal clock that aligns us to the 24 hours in a day, is also completely off if we are heading to a destination in another time zone.

Although it may seem worth splurging on business-class tickets to ensure more comfort and a better sleep, especially on l

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