The scene where Joey and Ross take their first nap together took ages to film. It's one of the longest-running bloopers in the gag reel - David Schwimmer and Matt LeBlanc could not stop laughing.
At the beginning of the episode, Chandler, Ross and Joey watch Die Hard (1988) which stars Bruce Willis, who guest starred earlier on the show as Elizabeth's father.
The Magna Doodle has a picture of a motorcycle called a "crotch rocket".
According to Phoebe, Rachel has been maid of honor in at least two weddings. One of those weddings was Barry and Mindy's wedding in the season two finale The One with Barry and Mindy's Wedding (1996).
The motorcycle illustrated on the Magnadoodle is a Ducati 916, as exemplified by the cat-eye headlights, the high-swept, under-tail exhaust, and single-sided swing arm.