# sleep well

> English word · Interjection

## Definitions
1. A farewell said shortly before going to bed; usually said between family members or good friends.

## Etymology
From sleep + well.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/sleep-well