Use the information you have learned to make an informed choice about whether you want to sleep with someone, but understand that there may still be risks involved that neither of you know.

Some possible answers could be: someone from her family died, she is not getting enough sleep, she had a fight with her spouse that morning, her son is ill, she is not feeling well, etc.

Someone who sleep talks might just make noises, or could have a long one-sided conversation with you.