Yes! that's the one of big problem for him, because of not sleeping properly he gets lazy on day time and that lazyness brings different issues towards his future plans make him to think night time. I think he needs a friend who can give conceling for being happy for today & moral support. He needs to know different story of people who are  living with difficulty situation but they are happy for today.
Friend, i think you  can change him, so be stronge, keep positive thinking. everything will work out after while.
keep smiling.