Chapter 18, Verse 11, The cave
سورة الكهف
فَضَرَبۡنَا عَلَىٰٓ ءَاذَانِهِمۡ فِي ٱلۡكَهۡفِ سِنِينَ عَدَدٗا
Therefore We covered up their (sense of) hearing (causing them, to go in deep sleep) in the Cave for a number of years.
Chapter 18, Verse 12, The cave
سورة الكهف
ثُمَّ بَعَثۡنَٰهُمۡ لِنَعۡلَمَ أَيُّ ٱلۡحِزۡبَيۡنِ أَحۡصَىٰ لِمَا لَبِثُوٓاْ أَمَدٗا
Then We raised them up (from their sleep), that We might test which of the two parties was best at calculating the time period that they had tarried.
Chapter 25, Verse 47, The Standard
سورة الفرقان
وَهُوَ ٱلَّذِي جَعَلَ لَكُمُ ٱلَّيۡلَ لِبَاسٗا وَٱلنَّوۡمَ سُبَاتٗا وَجَعَلَ ٱلنَّهَارَ نُشُورٗا
And it is He Who makes the night a covering for you, and the sleep (as) repose, and makes the day Nushur (i.e. getting up and going about here and there for daily work, etc. after one's sleep at night or like resurrection after one's death).
Chapter 51, Verse 17, The winnowing winds
سورة الذاريات
كَانُواْ قَلِيلٗا مِّنَ ٱلَّيۡلِ مَا يَهۡجَعُونَ
They used to sleep but little by night [invoking their Lord (Allah) and praying, with fear and hope].
Chapter 78, Verse 9, The tidings
سورة النبأ
وَجَعَلۡنَا نَوۡمَكُمۡ سُبَاتٗا
And have made your sleep as a thing for rest.