For the bed is shorter than that a man can stretch himself on it; and the covering narrower than that he can wrap himself in it.

Indeed, the bed is too short to stretch out on, and the blanket too small to wrap around you.

For shorter hath been the bed Than to stretch one's self out in, And the covering hath been narrower Than to wrap one's self up in.

For the bed is too short to stretch oneself on, and the covering too narrow when he would wrap himself in it.