John Gill Commentary Proverbs 19:15

"Slothfulness casteth into a deep sleep; And the idle soul shall suffer hunger." — Proverbs 19:15 (ASV)

Slothfulness casts into a deep sleep
Slothful persons are generally sleepy, and are very desirous of sleep, and indulge themselves in it; they spend their time, day and night, in sleep and drowsiness; and are quite careless and unconcerned about either their temporal or eternal good; see (Proverbs 6:9–11) ; and an idle soul shall suffer hunger ;
and perish with it, both in a temporal and spiritual sense: an idle person, that will not work, ought not to eat; and an idle soul, or one that is unconcerned about his soul, and the spiritual food of it, shall perish for want of it.