|First Appeared||Animal Crossing|
|Later Appeared||Animal Crossing: Wild World|
Animal Crossing: City Folk(Player-useable)
|Available(ACWW)||2 days a week|
|Time Availability(ACCF)||10am - 11pm|
Sleepiness is one of the many Emotions that were first introduced in Animal Crossing (GCN) and then later appeared in Animal Crossing: Wild World and Animal Crossing: City Folk, which in these later installments could then be used by both the Player and CPUs through Dr. Shrunk(ACWW) and both Dr. Shrunk/Master Frillard(ACCF).
When the Sleepiness Emotion is activated, the user puts one hand up to their mouth as they let out a slight yawn and then stare out blankly in front of them as fatigue bubbles appear and rise out of their head.
 Animal Crossing: City Folk
Here's Dr. Frillard's act from his stand-up routine entitled "Sleepiness":
Ready for a thrill? Then Frillard's classic shtick will do the trick!
Now, I'd like complete silence as I begin...
Prepare to see emotion in motion! You shall now see sleepiness in the very air!............Now, who's sleepy?...You or me? Yawn. Time for my nap.