Columbia subject headings:
Harvard subject headings:
Cabala
Judaism--Customs and practices
Sleep--Religious aspects--Judaism
Princeton subject headings:
Bedtime prayers.
Dreams--Religious aspects--Judaism.
Judaism--Customs and practices.
Judaism--Liturgy--Texts.
Night--Religious aspects--Judaism.
Shema.
Sleep--Religious aspects--Judaism.
Tikkun ḥaẓot.