1.
night sweat; sweating during sleep
perspiration that occurs while sleeping
寝汗をかいた。
I broke out in a night sweat.
寝汗 is a compound of 寝 (sleep) + 汗 (sweat). It refers to perspiration that occurs while sleeping.
Common collocations
- 寝汗をかく: to have night sweats
- 寝汗がひどい: to have bad night sweats
- 寝汗で目が覚める: to wake up from night sweats
- 寝汗対策: measures against night sweats
Causes
Can be caused by hot weather, illness, fever, stress, or medications. Persistent night sweats may indicate a medical condition and are worth consulting a doctor about.