When used, two drawings of Peach and multiple hearts frame the screen as Peach dances. The Peach drawings flank the window, and the hearts appear all over the screen. A sped-up rendition of the Coin Heaven theme plays to accompany Peach's dancing. All grounded opponents fall asleep, and all opponents take 10%, 20%, or 40% damage (depending on distance). Characters sleep for longer the closer they are to Peach; this can easily exceed ten seconds even with button mashing. Regardless of whether enemies fall asleep or not, dozens of health-restoring peaches appear.
Once the Final Smash is complete, Peach can heal herself easily and/or get free hits on her sleeping opponents. It is recommended to use powerful attacks on them, like a smash attack. If they have high percentages, they may get KO'd.
As with any cause of sleep, only characters that are grounded are affected. Characters with many jumps, slow falling speed, and/or good recovery moves can remain airborne during the entire Final Smash. Other ways of avoiding the Final Smash include grabbing edges, wall clinging, and grabbing ladders. These techniques may not stop a character from taking damage, but avoiding the sleep portion of the Final Smash makes it relatively easy to eat the peaches that appear. Characters may also avoid taking damage by grabbing on the ledge with correct timing.
Given the fact that the camera zooms on Peach during the Final Smash, it may be harder for opponents to attempt to stay in midair and they can unconsciously make a self-destruct, since they can't see where they are going. However, the zoom-in is relatively brief, so if the opponent stops jumping and falls onto a surface (if there is one beneath them) or has a clear idea of where they are, the move is easy to avoid.
Since sleeping characters cannot move, this Final Smash is most effective on scrolling stages. The move has a limited, albeit extremely large, range.
The move is unique to Brawl; the name, effect, and fruit being an obvious pun on her name. However, Peach has shown the ability to put enemies to sleep in Super Mario RPG using her "Sleepy Time" ability. The Peach drawings may have been inspired by Super Princess Peach. Slowing down time reveals that the Final Smash music is a sped up remix of the music in the Sky and Coin Heaven levels and in the Warp Zone (World 9) of Super Mario Bros. 3 ().
 Trophy Info
Peach's Final Smash. Images of the princess border the screen and a rain of peaches falls. While this is happening, all the other characters fall asleep. So, Peach's dilemma is this--does she eat the peaches to lower her damage, or does she smack around her dozing enemies? Take stock of the situation and choose the path that leads to victory.
 Brawl Manual description
"Pull foes into Peach's world, where they fall asleep. The closer they are to Peach, the deeper their slumber. Eat the fallen peaches to recover damage."