also: とうかん
night sweats; sweating during sleep
Refers to excessive sweating while sleeping, often associated with illness or fever.
I caught a cold and had night sweats.
寝汗がひどくて、パジャマがびしょびしょになった。
My night sweats were so bad that my pajamas got soaked.
寝汗 is sweat produced while sleeping (often from fever), whereas 冷や汗 is sweat triggered by fear or nervous tension, awake or asleep.
Standard kanji spelling for 'night sweats'.
Rare kanji form, mainly used in medical contexts. Reading とうかん is restricted to this form.
Compound of 寝 (ne, 'sleep') and 汗 (ase, 'sweat'). The reading ねあせ is a straightforward combination. The alternative kanji 盗汗 (tōkan) is a Sino-Japanese medical term.