Sooo glad you had a good night of sleep last night!!
I agree that getting up and doing something if you wake up with anxiety seems like it would cause you a habit of getting up out of bed.
About a week ago, however, I woke up with terrible chest pains and nausea. I just sat down in the bathroom a few minutes, waited until I didn't feel the need to writhe about anymore, and then crawled back into bed. I never even remembered falling back asleep. I guess that must of worked, but I am used to waiting panic attacks out in the bathroom, so it's a soothing safe place for me. (hehe, kind of silly.) It also wasn't quite a panic attack but obviously anxiety symptoms.