♪ Happy kitty, SLEEPY kitty
The Big Bang Theory Season 12, Episode 19
Happy kitty, SLEEPY kitty
The Big Bang Theory Season 6, Episode 22
Really? You'll risk getting SLEEPY...
The Big Bang Theory Season 4, Episode 6
Happy kitty, SLEEPY kitty
Purr, purr, purr
The Big Bang Theory Season 10, Episode 20
Sleepy kitty...
The Big Bang Theory Season 2, Episode 21