Sirach 31:19-21

Revised Standard Version Catholic Edition

¹⁹ How ample a little is for a well-disciplined man!
    He does not breathe heavily upon his bed.
²⁰ Healthy sleep depends on moderate eating;
    he rises early, and feels fit.^[a]
The distress of sleeplessness and of nausea
    and colic are with the glutton.
²¹ If you are overstuffed with food,
    get up in the middle of the meal, and you will have relief.