This is bizarre to me, in that it is mandatory.... There are people it could benefit, but there are also people that can take a nap and have their whole day thrown off.... I was watching "A Football Life" documentary on NFL Network, and they were talking about how Steve McNair had to take naps before every game.... So, it depends on the individual, and as Husker fans we should all hope that Kolter oversleeps....
Side Note: Anyone who hasn't watched one of the "A Football Life" documentaries is really missing out. They are similar to the "30 for 30" series that ESPN does. Both are well made....