worms on my bed?!?!?

Question by my skittles are green >.<: worms on my bed?!?!?
ok well this morning my friend found a brownish worm….well i think it was a worm….but it was EXTREMELY small….about a centimeter or even less….well yea it was alive so i got disgusted and killed it of course then i looked aaaall over my bed and found another dead one on that same pillow…..soooo i took all my covers off put them in the washer…and threw out that pillow….so what are they exactly??…….my dog sleeps on the bed with me somtimes…so could it be somthing she’s bringing in from outside???

o and will washing my sheets and what not get rid of them??!?….

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