Wa `alaykum As-Salamu waRahmatullahi wa Barakatuh.

 

On the authority of `Ibn Abbas (may Allah be pleased with him), that the Messenger of Allah (peace and blessings of Allah be upon him) said: “Verily Allah has pardoned [or been lenient with] for me my ummah: their mistakes, their forgetfulness, and that which they have been forced to do under duress.” (Ibn Majah)

 

Furthermore, It was narrated from `A’ishah that the Prophet said: “The pen has been lifted from three: From the sleeper until he wakes up, from the minor until he grows up, and from the insane until he comes back to his senses or recovers.” (An-Nasa’i)

 

Based on those two reports, If a person commits something unlawful while he is sleeping, he is not liable to be sinful. Allah knows best.

 

Almighty Allah knows best.