。
She has to go to bed and get up early.
Literal
She [topic-は] early-bed-early-rise must-do.
早寝早起き is a four-character compound with parallel structure: 早寝 ('early sleeping') + 早起き ('early rising'). It functions as a noun and corresponds to the English 'early to bed, early to rise.' Used as a suru-verb here. Cultural sidelight: this regimen is heavily promoted in Japanese health and parenting discourse — captured in the well-known phrase 早寝早起き朝ごはん ('early to bed, early to rise, [eat a proper] breakfast'), a national slogan for child wellness.