The Great Debate: What did Ralph Wiggum mean when he said "Oh boy! Sleep is where I'm a Viking"?

We are a civilization with far too much time on its hands. A debate is currently raging across nerdy message boards about what, exactly, Ralph Wiggum states that sleep is where he is a Viking.

Does he mean he's 'one who excels'? Or is he actually a Nordic Warrior in his dreams?

I vote for Viking warrior. I've never used 'viking' as an affirmation. As in, "hey buddy, viking work." And I do feel somewhat ashamed that I spent the better part of the morning thinking about this.