Ever wake up looking like a bird has nested in your hair? After nine years...

https://wiki-aero.win/index.php/Why_is_everyone_talking_about_friction_and_hair_cuticles_now%3F

Ever wake up looking like a bird has nested in your hair? After nine years behind a salon reception desk, I have learnt that friction against cotton is the main culprit behind those stubborn morning knots