Ruling on the Invalidity of Wudu Before Sleep

Question
A person performs wudu an hour before sleeping, and then their wudu becomes invalid before they sleep. Is this wudu considered valid, or must they repeat it?
Answer
I say, and with God's help: It is preferable to sleep in a state of purity, meaning that one should go to bed while in a state of purity. If this state is nullified before going to bed, it is preferable to renew it, but it is not obligatory. And God knows best.
imam icon

Send your question to the smart assistant

If the previous answers are not appropriate, please send your question to the Mufti via