Katherine's bedtime song to her brother

Charles sometimes yells or laughs instead of relaxing and going to sleep at night.  Tonight his sister thoughtfully tried to help him drift off to sleep with this impromptu lullaby:

Sleep when I sleep.  Sleep when I sleep.

I'm not afraid of the dark.

Aaaah...

Sleep when I sleep.  Sleep when I sleep.

Sleep when I sleep.  Sleep when I sleep.

I'm not afraid of the dark.

(ad infinitum)

Though well intentioned, sadly these dulcet strains did not have the desired effect.