Sopor

·noun Profound sleep from which a person can be roused only with difficulty.

sopor
sŏpor, ōris, m. [Sanscr. root svap-, sleep; cf. somnus; Gr. ὕπνος], a deep sleep. I Lit., in gen., ...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
sopor
sopor ōris, m SOP-, a deep sleep, slumber : cum eum sopor oppressisset, L.: sopore discusso, Cu.: ...

An Elementary Latin Dictionary