The on-call room is a room in a hospital with a bunkbed (or two) intended for staff to rest in while they are on-call or due to be.
In Grey's Anatomy the on-call room is often used not for sleeping, but for sex.
- Cristina Yang and Preston Burke had sex for the first time together.
- Addison Montgomery and Alex Karev have sex there for the first and last time.
- Alex Karev and Izzie Stevens have sex (multiple times).
- Cristina Yang and Preston Burke fight over the secrecy of his tremors.
- George O'Malley and Callie Torres decide to have a baby.
- Callie Torres has sex with Mark Sloan (multiple times).
- Lexie Grey breaks Mark Sloan's penis while having sex.
- Owen Hunt and Cristina have sex for the first time.