I took an advil (ibuprofen) pm after i had a couple casual beers will i be okay to go to sleep?

Yes, but . . .: Advil PM is Advil plus Benadryl (diphenhydramine) (an allergy medicine that also can make some people pretty sleepy). Not only would I never recommend you drink when taking any medicine (over the counter, or prescription), but the combination of any form of advil/ibuprofen with alcohol, can not only cause stomach upset, but even result in developing an ulcer.