The word(s) "sleeping" appears 2 time(s) in 2 verse(s) in Quran in Saheeh International translation.

(1) And how many cities have We destroyed, and Our punishment came to them at night or while they were sleeping at noon.

(سورة الأعراف, Al-A'raaf, Chapter #7, Verse #4)
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(2) They will say, "O woe to us! Who has raised us up from our sleeping place?" [The reply will be], "This is what the Most Merciful had promised, and the messengers told the truth."

(سورة يس, Yaseen, Chapter #36, Verse #52)
(Arabic, Transliteration, Urdu (Ahmed Ali), Urdu (Jalandhry), Farsi, Yusuf Ali, Shakir, Picthal, Mohsin Khan, French, Spanish, Indonesian, Malay, German, Bosnian, Russian, Dutch, Italian, Portuguese, Tafsir - Jalal ad-Din, Tafsir - King Fahad Quran Complex)