For more comfort: TikTokers put the belt around their feet on the plane - flight attendants warn against this. The airlines' safety regulations actually stipulate that the belt must be strapped around the waist.
However, some TikToker swear that it should be placed around the ankles - after the legs have been placed at an angle on the seat. Many users find that you can sleep much better in this position and the strap ensures that the legs don't slip back down. A video shared by user @alexisburnaby1711 even reached over 20 million views.