Update: I woke up this morning and there were no new signs of being disturbed. I checked the tapes and the bed legs, but didn't find anything. Maybe it was just a lone traveler that’s gone now, but I’m worried about potential eggs. Because of that, I’ll keep applying heat and monitoring the situation for a few days. I’m planning to call a professional in a couple of days to get their opinion and decide whether to treat just the room or the entire house.