ANSWER:

The wudu is valid as long as you do not lose consciousness as sleeping is one of the things that invalidates wudu.

Sheikh My Question is if a person has done ablution,i have heard if he sits with the wall by getting support from the wall or if he lays down without sleeping this nullifies the ablution.Is this Authentic?

Ablution (Wudhu) | September 3, 2020 7:56 pm
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Do you have to do wudu before walking to the masjid to get the reward and expiation of sins with each step or would you still get that even if you only make wudu when you arrive at the masjid
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In most houses, the toilet and bathroom are joined.Are we allowed to take wudu in this type of bathroom?If not, is it okay to take from a sink and wash our legs in the bathroom?