I found them crawling on me at first, then found some on my bed. So I changed my bedding. Then I found some more on my laptop screen and whiteboard! They are black and have oblong body and they are very very very tiny. They do not bite or anything harmful, and move very slowly. They bother me as I am not comfortable with insects in my bedroom! The weather has been very hot as we've had a heatwave of up to 30 degrees. I have my windows open all the time.