Category: Wudu and Falling Asleep
Wudu and Falling Asleep ~ Sleep in itself does not invalidate ablution. If you sleep while sitting on a chair, your ablution remains valid, even though your sleep may take an hour or longer. This is because while seated, wind cannot be discharged. No other way of invalidating ablution takes place.
When it departs completely, as in sleep or fainting, and then is restored to him, the judgement is that wudu’ is obligatory. A deep sleep, whether long or short, breaks wudu’ absolutely. A deep sleep that in which the sleeper is not aware of what he or someone else does.