
- Not even a COZY sleeper car--
- Stop talking about trains!
The Big Bang Theory Season 10, Episode 11

...and Fort Cozy McBlanket.
The Big Bang Theory Season 8, Episode 20

Ooh! That sounds COZY.
The Big Bang Theory Season 9, Episode 20

All COZY wozy.
The Big Bang Theory Season 7, Episode 15

Sheldon Cooper does not do COZY.
The Big Bang Theory Season 6, Episode 20