What is the ruling on sleeping with a Quran mushaf as a pillow, or placing a mushaf or a copy of Surah Yasin under one's pillow?

Summary

It is forbidden to sleep using a Quran mushaf, a copy of Surah Yasin or any other surah, or religious books as a pillow, or to place them under the pillow. The reason is that this act is regarded as belittling the status of the Quran and religious knowledge. The prohibition stands even when the aim is to ward off jinn disturbance, and the fatwa notes a Shafi'i exception if one fears the book or mushaf would be stolen. It recommends reciting Ayat al-Kursi and the transmitted supplications instead.

Written in our own words from the original fatwa — check the source before acting on it.