أرسل هذا في رسالة قصيرة: Habitual sleep duration of coaches during in-competition and out-of-competition

  ______   __   __   __   _      ___      _____   
 /_   _//  \ \\/ // | || | ||   / _ \\   /  ___|| 
 `-| |,-    \ ` //  | '--' ||  | / \ || | // __   
   | ||      | ||   | .--. ||  | \_/ || | \\_\ || 
   |_||      |_||   |_|| |_||   \___//   \____//  
   `-`'      `-`'   `-`  `-`    `---`     `---`