what are simple sloth and presumption doing when christian comes upon them?

The three men are sleeping when Christian comes upon them.

"There he saw, beside the way, three men fast asleep with chains attached to their heels. The name of one was Simple, another was Sloth, and the third was

Presumption."

Source(s): Pilgrim's Progress

Simple ,Sloth and Presumption lie asleep a little out of the way as Christian comes ,he finds irons upon their heels.He finds them on the top of the mast for the dead sea is under them.