Not to be a-bed after midnight is to be up betimes.

To go to bed after midnight is to go to bed betimes

Afore me! It is so very late,
That we may call it early by and by.

Misery acquaints a man with strange bed-fellows

Were kisses all the joys in bed,One woman would another wed.

The pain is unrelenting; one does not abandon, even briefly, one's bed of nails, but is attached to it wherever one goes.