Bitten22 on "Any tips for finding and controlling bed bugs?"

I know there is some kind of bug in my room but I've been told that blood spots are not a for sure sign. Today I'm going to clean out the dresser drawers and clean out the closet. Do all clothes need to be washed in hot water or can I simply put them in the dryer for a long time? I'm a little nervous about what I may find or not find but this needs to be done because I don't know where else bugs would be hiding since I've already gotten new mattress and bedding. I'm hoping things just get better on their own but I have a feeling it won't. I did see a small bug crawling down the wall once and it was in dim light and it looked black. Any ideas what other insects cause biting at night? I've already looked this up but can't really find anything that matches or makes sense. This is very frustrating. It took me forever to fall asleep and I wake up itching in the night and feeling tired in the morning like I haven't slept because my brain is on the lookout but my body still has to sleep.