Guidelines for Prevention and Management of Bed Bugs in Shelters and Group Living Facilities Produced for the New York City Department of Homeless Services, in cooperation with the New York City Department of Health and Mental Hygiene and the New York State Integrated Pest Management (IPM) Program, Cornell University.
From my first and worst bed bug attack in a Maui hostel in 2010. I had over 40 bites in one night. If you have bites, let the hostel manager know immediately. Don't initially get angry at them. The frequent movement and shared accommodation of backpacking makes it very easy for bed bugs to spread, and hostels have no way to prevent this.
When traveling to third world countries and staying in hostels and hotels frequently, you risk encountering these blood sucking creatures at some point. If you know all the signs and steps to prevent bed bugs, your trip will be much more enjoyable and you won't have to stress about how to get rid of them.
Using your flashlight, take the sheets off the bed and inspect the corners of the mattress. If you see little dots, it could be blood, waste, or carcasses of bed bugs. Also, shine your flashlight in outlets, furniture screws, and other tiny hiding places.
The bad news about bed bugs is that in a well visited environment like a hostel or hotel, it is pretty much impossible to eradicate bed bugs. This is because even if you were able to find and kill every last egg, nymph and adult from the premises, all it takes is one new arrival with a pregnant adult female to turn up, and the problem starts
Consider using a garment hand steamer to steam your luggage, which will kill any bed bugs or eggs that may have hitched a ride home. Wash all of your clothes - even those that have not been worn - in hot water to ensure that any bed bugs that may have made it that far are not placed into your drawers/closet.