Ar Rum Ayah 23

وَمِنْ ءَايَـٰتِهِۦ مَنَامُكُم بِٱلَّيْلِ وَٱلنَّهَارِ وَٱبْتِغَآؤُكُم مِّن فَضْلِهِۦٓ‌ۚ إِنَّ فِى ذَٲلِكَ لَأَيَـٰتٍ لِّقَوْمٍ يَسْمَعُونَ ٢٣ And one of His signs is your sleep by night and by day ?for rest? as well as your seeking His bounty ?in both?. Surely in this are signs for people who listen.