Does light sleep break ones wudu ?

Question:

Assalamu Alaikum, I was sitting down on my buttocks listening to the imam's khutba and suddenly fell into a light sleep which did not distract my attention. Is my prayer valid?

Answer:

بسم الله الرحمن الرحيم

If someone fell asleep with his buttocks firmly established on the floor, then his wudu will not break, irrespective of him falling into a deep sleep or a light sleep; hence, your wudu was valid and did not break. (Nurul Idah: p. 31-32 [Bushra])

And Allah تعالى knows best

Written by Abu Muhsin