I found a caterpillar/ worm like bug on my bedspread when I was folding my laundry, what could it be?

Image by Tom Clifton
Worm traces on the bottom of a bed, Tapeats Fm., Grand Canyon

Question by si1verrose2000: I found a caterpillar/ worm like bug on my bedspread when I was folding my laundry, what could it be?
I don’t think it was a worm because it had what looked like legs.It was blackish grey in color and very little, maybe a 1/4 inch.I only saw it because it inched up like an inchworm does when I flicked the towel I was folding onto the bed. I got a kleenex and picked it up thats when I noticed it had what looked like a bunch of tiny legs. WhenI squished it, it had green blood or whatever you would call it inside.

Give your answer to this question below!