Well, somebody woke up on the wrong side of the bed

Meaning

A teasing observation that someone is in a bad mood for no apparent reason. It is often used to get them to lighten up.

Teasing, lighthearted

Used in a sentence

• Someone woke up on the wrong side of the bed, why don't you have a coffee?
• Easy there, looks like somebody woke up on the wrong side of the bed today.
• Don't mind him, I think somebody woke up on the wrong side of the bed.