Jet Lag, Solved: 3 Golden Rules for Better Travel Sleep (Including In-Flight Tips)

The saying ‘West is Best, East is a Beast’ refers to the fact that flying West involves delaying or extending your internal clocks to more than 24 hours, whereas flying East involves advancing your internal clock, or shortening your internal day.
New Study Reveals Why Jet Lag Lasts Longer Than You Think — Plus 7 Ways to Beat It

Martin Seeley, CEO and sleep expert at MattressNextDay, said, “The National University of Singapore recently published the world’s first large-scale study on jet lag recovery.