A:
There is no harm in
sleeping at any time, whether at night or during the day, as long as it does not hinder a person from performing a religious duty. However, it is Makruh (disliked) to sleep before the `Isha' (Night) Prayer, as it most probably leads to missing it.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.