As a deity name
Name 493 of the Gayatri Sahasranāma — Devi Bhagavata Purana, as taught by Sages
As a Hindi name
No reading on this path — this spelling has no entry in our Hindi sources, and no near neighbour is attested there either. We say so rather than invent one.
As a Sanskrit word
Meaning
sleep, slumber, sleepiness, sloth, &c.
Scripturally attestedWhy this matches what you typed
M1 · same meaning "nidrāyai" is the dative of "nidrā" — the same word in a different grammatical case.
Dictionary citations
ni-√ 1. drā (or √ drai) P. Ā. -drāyati, ˚te (-drāti, Śāntiś.; pf. -dadrau, Naiṣ.), to fall asleep, sleep, slumber, ŚBr.; MBh.; Kāv. &c.
ni-˚drā f. sleep, slumber, sleepiness, sloth, RV.; MBh.; Kāv. &c.
Caveats
Sources contain errors and engines have limits; every claim above carries its citation so you can verify it. This is guidance about names and their sources — not religious or astrological consultation. How we work · Our sources