Śrīmad-Bhāgavatam · Text 7.9.32
Who is speaking and story frame
न्यस्येदमात्मनि जगद्विलयाम्बुमध्ये
शेषेत्मना निजसुखानुभवो निरीह: ।
योगेन मीलितदृगात्मनिपीतनिद्र-
स्तुर्ये स्थितो न तु तमो न गुणांश्च युङ्क्षे ॥ ३२ ॥
nyasyedam ātmani jagad vilayāmbu-madhye
śeṣetmanā nija-sukhānubhavo nirīhaḥ
yogena mīlita-dṛg-ātma-nipīta-nidras
turye sthito na tu tamo na guṇāṁś ca yuṅkṣe
O my Lord, O Supreme Personality of Godhead, after the annihilation the creative energy is kept in You, who appear to sleep with half-closed eyes. Actually, however, You do not sleep like an ordinary human being, for You are always in a transcendental stage, beyond the creation of the material world, and You always feel transcendental bliss. As Kāraṇodakaśāyī Viṣṇu, You thus remain in Your transcendental status, not touching material objects. Although You appear to sleep, this sleeping is distinct from sleeping in ignorance.
Read Śrīla Prabhupāda's purport on Vedabase.io