Matthew Poole and continuators on Ecclesiastes 5:12

12 The sleep of a labouring man is sweet , whether he eat little , or much : but the abundance of the rich will not suffer him to sleep.

Because he is free from those cares and fears, wherewith the minds of rich men are oft distracted, and their sleep disturbed.

Then his weariness disposeth him to sleep.

In which case his healthful Constitution and laborious course of life prevents those crudities and indigestions which oft-times break the sleep of rich men.

Heb. the fulness either 1. of his Diet, which commonly discomposeth their stomachs and hinders their rest: Or, 2. of Wealth; which is commonly attended with many perplexing cares which disquiet men both by Day and by Night. The Hebrew word is used in Scripture both ways, and possibly it is thus generally expressed to include both significations.

Marginal references: Heb. saturity, or, fulness.