At 60 I understand this all too well. I go almost every night. If in a shelter, I set up everything to minimize any disturbance. My crocks were right at the foot of my sleeping bag, headlight right were I could easily reach it, and I memorized my route before turning in. I almost never turned on my headlight until I was out of the shelter and turned it off after stealing a glance at where my bag was when returning, and always used my red light anywhere near the shelter. I would walk about 50 to 100 feet and generally would get a great star show if there was one to be had. I would say on average at least half of the people in the shelter would get up and "step out" at night.