They're hard to find
This is what you need to look for.
If you think you've got bed-bugs and want to inspect your bed to confirm it......this is a great example of what you're looking for.
The following video has some excellent close up shots of all stages of the bed-bug life-cycle as well as good examples of faecal specks and moulted shells. This is filmed very close up so to get a good idea of scale, the large adult bed-bugs you're seeing are about the size of an apple seed.
The size of these infestations are quite large, so the signs are quite obvious. For a smaller infestation you would be looking for faecal specks in seams of the mattress........or more likely at the head end of the bed-base in/under wooden slats or if a solid base on the underside of the base in the material seams around the staples.
If you don't find any obvious signs you may still have an infestation but it's probably in the early stages.
We hope this helps and as always, please feel free to give the team a call for advice or to help diagnose the problem and recommend appropriate treatments.
The team at Bug King/Chimney King 0800 KING KING (54 64 54)