This cat has the most hilarious 'sleepy face' ever.

Meet Setsu-chan, an adorable little white kitty from Japan.

He has amazing piercing blue eyes.

Isn’t he adorable? But just wait…

Boom! Sleepy face activated!

This is one seriously sleepy kitty!

Quite a transformation!

This cat needs some rest!

And here he is catching up on his much needed beauty sleep.

Best sleepy face ever?