If you put Liquid Soap (Luga dhune-without diluting) in the cracks (around bed) and infested area regularly for some days (every day), they will die or go away. The soap solidifies in the cracks and bugs will not find place to hide. This method does not couse harm to health. You can use a wash bottle  to put the soap in the cracks. It definitely makes the room bug free.

You can vacuum the room a couple of times a week.

This method worked for me, hopefully it will work for you too.