I deeply love sleeping outside under the stars. I just returned from a two week long winter camping trip in the mountains outside Yellowstone in Wyoming.
On one calm night, with an almost full moon, I chose to sleep outside the tent out in the middle of a lovely meadow. I stomped out a flat spot with my skis, to create a bed. It was probably 20 below zero fahrenheit, and I was zipped tight and content in my enormous winter sleeping bag.
I listened to wolves howling all night long, and they were close. It was beautiful.
The next day I skied around the edges of the meadow, and found a lot of wolf tracks. One wolf, or several, I have no idea. Some were just a few dozen yards from where I slept under the big cold deep blue sky.