I think V got insomnia after being discharged from the military. He takes a lot of nutritional supplements.

On the 11th, a video titled 'First Release! The 'real' collectibles that V brought all the way to Paris. Why did BTS' V cry at J-Hope's concert?' was uploaded to the W KOREA YouTube channel.

V took out a digestive medicine and said, "I have a habit of eating food quickly, so I often get indigestion. I take it whenever I get indigestion."

Regarding melatonin, he said, "When I was serving in the military, I slept really well when the lights went out at 10 o'clock. After being discharged and given freedom, I started sleeping late," and said, "I think I'll sleep well if I re-enlist and go to bed at 10 o'clock. When I see people in society having trouble sleeping like this, I think I don't sleep at all."
When asked about his routine for getting a good night's sleep, V said, "I close my eyes and don't think about anything," but added, "All sorts of thoughts come to mind. I tend to have a lot of random thoughts. Recently, I thought, 'If a rhinoceros horn pierced my heart, would I die in a second? Could I last about 10 seconds?' I take (melatonin) so that I never do that."

I totally agree that being given freedom causes insomnia.

I was forced to set a bedtime, but I slept really well.

This video introduction of my favorite items was so much fun and I could feel the honest side of it.

When I saw the episode where he cried at J-Hope's concert, it seemed like a true friendship.