Translation guide
In Japanese, expressing 'short sleep' depends on whether you mean a nap, a brief rest, or sleeping for a short duration. The most common and natural way is to use specific words for napping or to describe the length of sleep.
To refer to a short sleep taken during the day, often to refresh oneself.
The standard word for a daytime nap. It literally means 'daytime sleep' and is the most common way to say 'nap'.
昼寝をしたらすっきりした。
I felt refreshed after taking a nap.
彼は毎日昼寝をする習慣がある。
He has a habit of taking a nap every day.
A slightly more formal term for a nap, often used in contexts like work breaks or short rests. It implies a brief sleep to regain alertness.
運転中に眠くなったので、仮眠をとった。
I got sleepy while driving, so I took a nap.
Refers to dozing off unintentionally or napping without lying down properly, like nodding off in a chair. It has a slightly poetic or casual feel.
ソファでうたた寝をしてしまった。
I dozed off on the sofa.
A casual phrase meaning 'to sleep a little'. It can be used for a short nap or just a brief rest.
疲れたからちょっと寝るね。
I'm tired, so I'll take a short nap.
To describe sleeping for a short amount of time, often at night or in general.
A direct translation meaning 'short sleep'. It is used in factual or health-related contexts.
短い睡眠は健康に悪いと言われている。
It is said that short sleep is bad for your health.
A common way to say 'sleep duration is short'. It focuses on the length of sleep rather than the act of napping.
最近、睡眠時間が短いです。
Lately, my sleep duration has been short.
A natural, casual way to say you haven't slept much. It implies a short sleep without specifying a nap.
昨日はあまり寝ていないから、眠い。
I didn't sleep much yesterday, so I'm sleepy.
To refer to a very brief nap, often 15-20 minutes, taken to boost energy and alertness.
A loanword from English 'power nap'. It is widely understood in modern Japanese, especially in business or productivity contexts.
昼休みにパワーナップをすると、午後の仕事がはかどる。
Taking a power nap during lunch break makes afternoon work more efficient.
A more formal Japanese term meaning 'short nap'. It is used in scientific or workplace guidelines.
短時間仮眠は集中力を回復させる。
A short nap restores concentration.
昼寝 (hirune) is the general word for a daytime nap. 仮眠 (kamin) is more formal and often implies a planned short sleep, like during a break. うたた寝 (utatane) is dozing off unintentionally or napping in a casual, unplanned way.
The direct translation '短い睡眠' (mijikai suimin) is not commonly used in everyday conversation. It sounds clinical. Use more natural expressions like 昼寝 or ちょっと寝る for casual contexts.