A good result all in all given that some of us thought this could be a banana skin.
As for the Wello, comment, lets not forget these guys don't work 9-5. So the hours they keep are entirely different. He could go to bed at mid-night and get up at 12:00 and have a full 12 hours sleep, with plenty of time before kick off.
I would imagine if the coach had a problem with it then he would talk it over. Most people are at their most productive earlier in the day, so is would not surprise me if the sport scientists out there would recommend shifting your day around so you play at your peak time, rather than have an early morning and using up all your energy before the match.
I seam to recall scully or Joynty saying they would have a sleep most match days a few hours before kick off. And that match day was a rather dull day. No point getting over excited and using up all that nervous energy.
Also if he's watching the boxing, he ain't out at the bars getting drunk, which players used to do back in the day and have a match the following day. Either way we don't know the routine so it's hard to judge from a one off comment.