
And a SLEEPY Sheldon is a cranky Sheldon.
And a cranky Sheldon...
The Big Bang Theory Season 6, Episode 22

You know if my clothes get
too soft it makes me SLEEPY.
The Big Bang Theory Season 5, Episode 6

Happy kitty, SLEEPY kitty
The Big Bang Theory Season 4, Episode 2

Sleepy kitty.
The Big Bang Theory Season 2, Episode 21

Happy kitty, SLEEPY kitty
The Big Bang Theory Season 1, Episode 11