Yes, not sure about massive advantage but some advantage, for ex: https://www.telegraph.co.uk/men/active/11253654/Meet-the-man-who-helps-superstar-footballers-s

Yes, not sure about massive advantage but some advantage, for ex: https://www.telegraph.co.uk/men/active/11253654/Meet-the-man-who-helps-superstar-footballers-sleep.html https://www.telegraph.co.uk/men/active/11253654/Meet-the-man...