Haaland secret trick to score 42 goals for Man City this season Erling Haaland has been enjoying a successful debut campaign at Manchester City, scoring 8 goals in just one week. 41 goals this season. 3 goals in domestic cups. 28 goals in Premier League and 10 goals in Champions League. And one of his secrets to his success is his sleep as he considers considers sleeping, “the most important thing in life". In order to be at a top level, the Viking has a method to maximize his sleeping. Haaland uses orange-tinted, blue-light glasses, which he wears before going to sleep. At around 10 or 10:30 PM he turns off all electronic devices, and wears an Oura Ring that measures sleep quality, temperature trends, stress, and heart rate. Once getting his necessary sleep Haaland’s alarm to wake up consists of the Champions League antheme!