All about my cat (Shakespearean Sonnet)

This is a poem about my old cat
he sleeps all day but doesn't get fat.
He likes to hang from my drapes with his claws
while all night he scampers around on his paws.

Under his chin, he likes me to scratch
after he runs, a mouse he does catch.
He rolls on his back  so I can rub his belly
but afterwards, he can get a little smelly!

Late into the deep dark night
sometimes other cats he does fight.
When morning comes he arrives at the door
and then he limps across the cold, hard floor.

Through all the years he's been my good friend.
But sadly, he's come to an unfortunate end!