Thank you for your question. When snakes are comfortable in their surroundings, they will often remain in the same position for quite some time. They may utilize whatever structures are available at the time to climb or rest upon, regardless of whether or not it's convenient for you.
I don't think you have anything to be concerned about. I hope this information helps, and thank you for contacting Ask an Expert.
Thank you for answering my question. I wasn't really concerned I just thought it was weird because there is a lot of other places to sleep on me and he almost always decides that my face is best to sleep on.
You're welcome. You just never know what animals are going to do.