Do you live in an apt building or had guests over recently? Also, do you travel a lot? I do and ALWAYS check the mattresses before I even bring the bags in the room..

get rid of them as fast as you can.

Here you go bro.. http://doyourownpestcontrol.com/bed-bugs.htm

Hope that helps.. get pest control if you want but it can get extremely expensive as they need to come back several times to do to follow up visits.