# sleepiness vs sleepless

> English confusable word pair

## The two words

### sleepiness
*noun · frequency rank #49,638*
The property of being sleepy.

### sleepless
*adjective · IPA /ˈsliːpləs/ · frequency rank #23,104*
Characterized by an absence of sleep: wakeful.

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