Always do an inspection immediately upon arriving. Below are some signs:
- Smell: smell of mildew or dampness or sweet musty. If yes, be more thorough in your search.
- Specks of blood on bedding, mattresses, or upholstered furniture such as couches and headboards.
- Exoskeletons. ~1mm pale yellow skins: nymphs shed outer skins as they grow
- Tiny, blackish specks. Look on sheet, mattress covers, mattress (undo cover) and especially the edges.
- Eggs: Whitish to yellow in color and the size of a pinhead. Sometime one but often in clusters.
Look around edges of the mattress, underneath the mattress, the edges of bed. Look high and low. Look well. I do this even when going to regular and expensive hotels.
Buen Camino