Is it true that it was reported from 'Umar ibn al-Khattab, 'Umar ibn 'Abd al-'Aziz, and Ibn Sirin that they disliked a woman sleeping on her back, and what is the legislated way for a woman to sleep if that is true?

Some scholars disliked a woman sleeping on her back, among them 'Umar ibn 'Abd al-'Aziz, Ibn Sirin, Ahmad, and Ishaq. This was explained by the fact that it is a cause for her to become uncovered and for Satan to covet her. However, there is no sacred text that prohibits this, and the default ruling is that it is not disliked. Ibn Muflih pointed out that disliking something requires evidence.