Answer
I say, and with God's success: It is permissible to sleep after Asr (afternoon prayer), and what has been narrated that the Messenger of God, peace be upon him, said: (Whoever sleeps after Asr and loses his mind, let him blame no one but himself), Al-Layth said: I have not heard this from the hadith of the Messenger of God, peace be upon him, so this hadith is disconnected. It has been narrated connectedly that the Messenger of God, peace be upon him, said: (Whoever misses the Asr prayer is as if he has lost his family and wealth). In this hadith, there is permission to sleep after Asr, as mentioned in the explanation of the difficult issues of the narrations 3: 99. And God knows best.