According to search-discovered classical Islamic scholarship, sleep (النوم - An-Nawm) is far more than a biological necessity; it is a profound sign (Ayah) of Allah's omnipotence, mercy, and His absolute distinction from His creation. The Quranic narrative, synthesized from key verses like 2:255, 39:42, and 78:9, presents sleep in multiple dimensions: as a mercy providing rest and severance (subāt) from worldly toil, as a testament to Allah's perfection as the One who is never overcome by slumber, and most significantly, as a 'lesser death.' Classical exegetes such as Al-Tabari and Ibn Kathir unanimously interpret verse 39:42 to mean that Allah takes the souls (anfus) during sleep, returning them upon waking—a daily rehearsal for the final return and resurrection. [2, 3] This metaphysical understanding is complemented by the extensive Prophetic Sunnah, which provides a detailed etiquette for sleeping—from performing ablution to reciting specific supplications—transforming this state of rest into a conscious act of worship and trust in Allah's care. [6, 28]