some sort of larva?

greetings! after having been out of town several weeks for work, i come home to find at least a dozen of these on my bed. the blanket had been taken off and put in the hamper before i left, so these were directly on the sheets. i also found some on a throw-blanket on my couch. at first i thought it was pillings of fuzz until i saw one of them stick it's head(??) out and look around. it also stuck it out the other side (although i didn't get a picture). needless to say i'm a bit freaked out and grossed out. any idea what these things could be?

edit: i am in southern california (orange county). the thing looked like it was using it's face to pull itself along the sheets.

https://preview.redd.it/a2dchne51bkd1.jpg?width=3000&format=pjpg&auto=webp&s=c6fa6bba8c2cc8d82a9a7883ef710ce7abaf819c

https://preview.redd.it/3juagme51bkd1.jpg?width=3000&format=pjpg&auto=webp&s=cda0b62d6fdeba325588b0f9ab354b1fb04a7c53

https://preview.redd.it/2yd8dne51bkd1.jpg?width=3000&format=pjpg&auto=webp&s=c9f2e403cc7e298e72a5d0f6ea3537a37735c905

https://preview.redd.it/0ewlshe51bkd1.jpg?width=3000&format=pjpg&auto=webp&s=244fba36b6fffb70e74c484fbad82955dcd84e64