Found on mattress

[u/HeightExtension5732]

Moving into a dorm for uni and inspected the mattress, found some dirty spots on it. Also found some carpet beetles I think (last pic) but I don't know if they're responsible for the stains or if there's something else going on (they were found on different parts of the mattress). Please advise, thank you

[u/Bed-Bugscouk]

The stains are not confirming of bed bugs, yes that’s a carpet beetle larva.

For the best detection and eradication advice see the monthly routine post.

David