Question: Is it necessary to cover one’s head when eating and when entering the toilet?

Answer: It is considered as part of Islamic etiquette (Mustahab) to cover the head when eating and when going to the toilet.

عن حبيب بن صالح رحمه الله قال كان رسول الله صلى الله عليه وسلم إذا دخل الخلاء لبس حذاءه وغطّى رأسه ( السنن الكبرى للبيهقى 1/96)

And Allah Ta’ala Knows Best

Yusuf Moosagie