I end every session with 3-5 minutes of craniosacral/reiki on the occiput and forehead... just holding their head between my hands. They almost always fall asleep.
Then I compress their shoulders, put my hands on their scalp and say, "Thank you. Take your time getting up." I wait for them in the waiting area and allow them to decide when they are ready to come out. I schedule 30 minutes between appointments so they don't have to rush to get out. I'd love to have two spaces, so they have at least an hour for "re-entry".
I love the therapist I receive massage from now, but she just gets up and walks out. Then about 5 minutes later she knocks on the door to ask if I am dressed. Even though I was dressed, I found this a bit intrusive.