Lulling Melody

A satyr's slumber comes

You may start the Melody as a standard action and it ends when you stop using a standard action to concentrate on it during your turn.

Every creature friend or foe within range must succeed a will save once per turn. When they are not tired and fail their save they becomes tired until the melody ends. Being tired induces a -4 penalty to saving throws against sleep effects. Tired creatures that fail their saving throw use their next move action to lie down. Tired creatures that are prone and fail their will saving throw start sleeping. To wake a creature a standard action in melee has to be spend to let it repeat its will saving throw. After the melody ends creatures can be woken up normally.