Are there less people on red-eye flights?

Because There are usually less people flying on red eyes Your chance of being upgraded to First Class is increased.

What is considered a red-eye flight?

What is a red eye flight? The answer is simple – and even a bit silly: that's the term for Commercial flights that leave at night and arrive the next day. The name is due to the fact that these flights can cause fatigue, insomnia, and red eyes.

Should I sleep on red-eye flights?

Others say that it's best to stay awake until your natural bed time with some periods of rest during the day Adequate hydration and a good diet are included. Before and after the flight, make sure to drink water. If you decide to take a nap, keep it under two hours.