A sampling of tweets from people who stayed up all night to watch Federer-Nadal

Whoever first referred to the Australian Open as "the people's Slam" clearly wasn't thinking about folks in the United States. The 3:30 a.m. ET start time of Thursday's semifinal between Roger Federer and Rafael Nadal was only convenient for insomniacs, graveyard shift workers and hosts of network morning talk shows.

That didn't stop tennis fans nationwide from staying up late (or getting up early) to watch the 27th meeting between the rivals. In between pouring cups of coffee and doing jumping jacks to stay awake, Busted Racquet was checking Twitter to monitor the condition of all those tennis fans whose Thursdays promise to be bleary-eyed.

A sampling of out favorite tweets: