Which famous people use 4-7-8 breathing at bedtime?

Ben Greenfield

Alongside red lighting, blue-light-blocking glasses and no TV in the bedroom.

Greenfield lists 4-7-8 breathing as part of his wind-down routine before sleep.

“4-7-8 breathing”Ben Greenfield

Source: A Day In The Life Of Ben Greenfield: Ben's Exact Morning, Afternoon & Evening Routines (podcast, 19 Oct 2019)