the world > physical sensation > sleeping and waking > sleep > drowsiness > [noun] > specific types (6)
Sleepiness like that of Endymion.
Drowsiness as evidenced by yawning; dullness; indolence, negligence, inattention.
Medicine. Somnolence or stupor produced by disease. Obsolete.
Sleepiness or sleep artificially induced by any means; also figurative.
a somnolent condition induced by walking in snow.