不ふ眠みん不ふ休きゅう

noun, noun which may take the genitive case particle 'no'

without sleep or rest; working day and night

Describes continuous effort or activity without sleeping or taking a break. Often used in contexts of intense work, study, or emergency response.

• 医い師したちは不ふ眠みん不ふ休きゅうで患かん者