Slumberous

1. (a.) Inviting slumber; soporiferous.

2. (a.) Being in the repose of slumber; sleepy; drowsy.

Thesaurus Entries

comatose, dopey, dozy, drowsy, heavy, hebetudinous, hypnotic, narcotic, nodding, opiate, sluggish, snoozy, somnifacient, somniferous, somnolent, soporific, stupid, torpid