There were so many bugs in the rented room that they came to my bed as soon as the lights were turned off. What should we do?

It may be because of environmental relations and so on. Do a good job of personal hygiene and clean frequently.

Elimination method: spray pesticides on the ground, close the doors and windows, wait for 30 minutes, open the door and go into the house to sweep out the dead bugs. Spray the freshener after cleaning, and it will be fine.