Hello,
Thank you in advance for the help. I was checking my mattress in a hotel room this evening and saw a bed bug-looking insect on the pillow. It was moving, slowly but steadily. I tried to capture it but it fell on the floor and couldn't find it anymore :(
However a more thorough inspection of the mattress discovered this guy:
Any ideas what it could be? A thorough inspection of the mattress had not revealed any other critters, nor signs of bed bugs, like stations etc. That larva was in the back of the mattress, along on of the seams, as shown in the picture.
Thanks again!