I stole your sleep

I am powerful
because I steal sleepiness
I have stolen yours
when I called you tonight
You were half asleep
and I heard your sweet voice
and I stole it too
so that you whispered thereafter
Thanks a lot doggie,
for doing the rest
by punishing our enemy,
your aunt,
which made you think
I stole your sleep
Finally I got the credit
But yes, not just your sleep,
I have stolen your heart too