Sleeping
A sleeping Nexomon can't act. Every attack on it lands, whatever its accuracy.
It stays after the battle, until it runs out or is cured, or the Nexomon faints or is fully restored. The Status effects page has the rules every effect shares.
Caused by
Same for all 3: On:TargetTurns:1–5
 Pendulum | 35% |
 Sleep Song | 30% |
 Sonic Scream | 20% on a hit |
History
Changes to this status effect across game updates.