It is reported that ʿAbdullāh b. Al-ʿAmr b. Al-ʿĀṣ – Allāh be pleased with them – said: There are three types of sleep: the incompetent’s sleep, proper sleep,and
stupid sleep. As for the
incompetent’s sleep, it is to sleep in the morning after sunrise (ḍuḥā time), when people are going about
their needs (work), he
is sleeping. As for the proper sleep, it is the midday nap (qaylūlah). And as
for the stupid sleep, it is to sleep when it is time to pray.
Al-Bayhaqī, Shuʿab
Al-Īmān #4409
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