The ruling on one who hears the adhan while sleeping and then is overcome by sleep

Question:
If a sleeping person hears the adhan, but his mind is not with him, meaning not fully present, what is the ruling in this case?

Answer:
Did he not get up to pray?
Q: No, but his mind was not fully present.
The Shaykh: He must repent to Allah and be cautious. He should set an alarm or something else, or instruct his family to wake him up, or set an alarm to help him so that he can use it to perform what Allah has made obligatory.