Niddātandī sutta: Sleepiness and Sloth

“Sleepiness, sloth, and yawning,
discontent, and grogginess after eating:
because of this the noble path
doesn’t shine for creatures here.”

“Sleepiness, sloth, and yawning,
discontent, and grogginess after eating:
when this is energetically fended off,
the noble path is purified.”