A British band and a group of scientists have worked together to make the most relaxing tune in history.
The song - created by Marconi Union and sound therapists - has been scientifically proven to encourage relaxation more than any other songs ever made (and yep, that includes Mozart and Enya)!
Weightless works by using specific rhythms, tones, frequencies and intervals to relax the listener. Each note is designed to slow the listener's heart rate, lower blood pressure, and reduce levels of the body's stress hormone, cortisol. The song has proved to be so successful that researchers have actively discouraged people from listening to it while driving.
One of the UK's leading stress specialists said: "'Weightless' induced the greatest relaxation - higher than any of the other music tested."
It's not the only song that can help you relax, though. Researches have made a whole playlist, featuring songs by Adele, Coldplay, Enya and Mozart.
And yep- there's a 10-hour version of "Weightless" for those wanting a longer listening experience.
How long will you last before you fall asleep?