However, it turns out that one of the cabin crew named Maddison Purdy explained that sleeping during air travel is not an easy matter. Flight attendant Maddison Purdy from British Airways has a trick to overcome jet lag by turning off blue light through settings on the phone. This method is claimed to help fight the negative effects of jet lag because one of the main causes is the disruption of the body's sleep-wake cycle.

Blue light or blue light is emitted from digital devices such as smartphones, tablets, laptops, and LED TVs. If you spend time staring at your smartphone continuously during a flight, it can disrupt the sleep time that should be used to adjust to jet lag upon arrival at your destination. Using a mobile phone during a flight can also make your brain think that you are still in the middle of the day. As a result, when trying to sleep, the brain condition will not allow you to sleep soundly.

That was also explained by The Sleep Foundation which stated that Electronic device screens such as smartphones, computers, tablets, and televisions can emit blue light that disrupts the natural sleep cycle. "Reducing exposure to light at night, especially blue light, is an important way to help the body naturally prepare for sleep and get quality rest," explained on the website.