Well, someone certainly had a night of it - and a price to pay the next morning.. :o)
When I went to bed at 2AM, these two guys were still having a field day downstairs. When I came down the next morning, John was out cold sleeping 5 quarters to the hour on the folding bed placed in the middle of the lounge. No movement whatsoever was detected for a good long while, although more and more people started stirring and moving about. Seamus took it upon himself to check for vital signs of life, licking John's shoulder and face; no reaction.
Finally, when we were just about to call the coroner and have the body removed, John returned from unconsciousness, albeit not looking quite as lively as he had the night before.