Wakeboardmom, having them sitting on the bed is not very good at all.
Most bat species we have in this area produce a bite that does not hurt and is not very noticable (looks like a bug bite). That being said it is very important that you not get bitten by a bat while you are sleeping (per the chance of disease transmission).
I know, sorry for the next few sleepless nights, but you need to get an exterminator pronto.
You need to read the following links, the first is very important based on your situation.
http://www.batconservation.org/content/Batproblems.html
"On a camping trip we woke up to find a bat in our tent. Should we have been concerned?
Yes. Because bats have small teeth and claws, it is possible to be bitten by a bat and not know it. Therefore, if you find you've been sleeping in the same room with a bat you should see a doctor as soon as possible. This also applies if a bat is found in a room with a child or a mentally impaired or intoxicated person."
Quote is from the following site
http://www.vaccineinformation.org/rabies/qandadis.asp