# sleep-proof

> English word · Adjective

## Definitions
1. Designed to prevent a person from sleeping.
2. Of makeup: in which a person can sleep without the need to reapply it afterwards due to smearing etc.

## Etymology
From sleep + -proof.

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