# 睡 — slumber

睡 means “slumber”. It is a JLPT N1 kanji written with 13 strokes. On'yomi: スイ (sui). It has no common kun'yomi.

- Meaning: slumber
- On'yomi: スイ (sui)
- Kun'yomi: —
- Strokes: 13
- Level: JLPT N1 · set Body & health 3

## How to remember 睡

Sounds like 垂: both read スイ.

Parts: 目 eye · 垂 hang down

## Don't confuse it with

[郵](https://moji.ninja/n2-kanji/mail/) · [剰](https://moji.ninja/n1-kanji/excess/) · [唾](https://moji.ninja/n1-kanji/saliva/) · [置](https://moji.ninja/n3-kanji/put/)

## More in the “Body & health 3” set

[疫](https://moji.ninja/n1-kanji/epidemic/) · [癒](https://moji.ninja/n1-kanji/soothe/) · [尿](https://moji.ninja/n1-kanji/urine/) · [吐](https://moji.ninja/n1-kanji/spit/) · [尻](https://moji.ninja/n1-kanji/rear/) · [憩](https://moji.ninja/n1-kanji/take-a-break/) · [睡](https://moji.ninja/n1-kanji/slumber/) · [腎](https://moji.ninja/n1-kanji/kidney/) · [掌](https://moji.ninja/n1-kanji/palm-of-the-hand/)

---

From Moji Ninja (https://moji.ninja/), a free app for learning hiragana, katakana and the JLPT kanji from N5 to N1 with spaced repetition. Page: https://moji.ninja/n1-kanji/slumber/. Last updated 2026-11-01.