You can fall asleep in just one minute using the 4-7-8 method – all you have to do is change the way you breathe says Dr Andrew Weil, a specialist in integrative medicine at the University of ArizonaYou can fall asleep in just one minute using the 4-7-8 method – all you have to do is change the way you breathe says Dr Andrew Weil, a specialist in integrative medicine at the University of Arizona