What are the advantages of having a bedroom on the sunny side? Isn't it good in the dark?

The bedroom is in the dark, which is harmful to health, that's for sure.

The bedroom is in the shade, not facing the sun.

Without sunshine,

The room will feel cold,

Your room is in the shade. Can't you get some sunshine?

Therefore, it will be better for the bedroom to face the body in the sun, so the current house requires great lighting and breathability.