لَا فِيهَا غَوْلٌ وَلَا هُمْ عَنْهَا يُنزَفُونَ
wherein there will be neither headache nor will it cause them stupefaction,
Agha Ali Puya Commentary
Commentary on Quran 37:47
[Pooya/Ali Commentary 37:47] It is stated in Baqarah: 255 that slumber does not overtake Allah, nor does sleep, nor fatigue. He is free from all effects caused by physical laws operating in this world. The spiritual world of the hereafter is a reward given to His approved servants, so the blissful existence of the hereafter will be a reflection of His attributes.