They are small in size almost look like beetles

http://www.google.ru/imgres?imgurl=http:...

I think they are BEDBUGS! Call an exterminator right away. They do bite people and suck blood. They will get on a bed sheet, and when you sleep suck your blood, and die. They can carry many germs, cause infections once bit, and can have poisonous germs that will hurt your body. after you're bitten,you will have blood on your bedsheet.

http://www.orkin.com/other/bed-bugs/

Go to that link for Exterminator. Please make me best answer.... Sorry.

Bedbugs !!