I live in the UK but need to stay up for the Superbowl, how do I keep myself awake?

Usually we go to bed at 4pm and then get up at 10pm to watch the game. Understandably this may be a tip that is better for next year rather than this one. Keeping yourself occupied doing some work while it's on will help as well as snacking and doing something to keep you awake at half time (we play football in our secluded street). All of that should help break the time up a little, I love watching the superbowl but by 3am I'm shattered.