9 How long will you lie there, O sluggard? When will you arise from your sleep?
10 A little sleep, a little slumber, a little folding of the hands to rest,
11 and poverty will come upon you like a robber, and want like an armed man.
Interestingly I've been thinking a lot about productivity in the past week since I read this, and in the midst of that ruminating came a piece that blends well with this topic.
This article by John Ortberg that someone sent my wife is more lengthy than anything I've posted in The Adventures in Proverbs, but it's very easy to read and incredibly insightful.