Should one recite 'Yehi noam' (Psalm 90:17 ff.) before an afternoon nap?

Synopsis

Some authorities recommend reciting 'Yehi noam' before an afternoon nap as protection against harmful spirits; the Levush rules this is not the custom.

Early Acharonim
Late Acharonim
Lenient
Strict
Lesser cited
Major authority

Discussion

Discussion coming soon.

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