What is the ruling regarding a wife who delays the 'Isha prayer until the end of the night due to exhaustion and sleep after Maghrib, and is the husband responsible for that?

There is no harm for a woman in delaying the Isha prayer until midnight; in fact, it is recommended to delay it until one-third or half of the night. However, it is not permissible to delay it beyond midnight. It is disliked to sleep before the Isha prayer, and if she sleeps, she should take measures to help her wake up. It is not permissible for a wife to deliberately delay the Isha prayer until dawn breaks; if she does so, she is sinful. The husband has authority over her to command her to perform Isha on time. Some scholars consider a woman's negligence in obligatory duties as nushooz (disobedience), which permits the husband to abandon her or strike her in a non-injurious manner. It is recommended to divorce her if she does not maintain prayer and cannot be compelled to do so.