I can sleep most anywhere.
Last year I was on an overnight tuna fishing trip out of Venice, Louisiana. It was rough and raining. I managed to get several hours sleep on a pitching boat with the rain and salt spray on my face, and the rest of me. An open boat with no cover and no place to sleep but the hard floor near the bow. I surprised even myself...
When I used to do gator hunts they were always overnight. After getting my gator I had no trouble sleeping on the hard boat seat whilst others hunted. Always woke up when a gator was on.
When I was younger more than once I was out in the woods and just slept on the ground, no sleeping bag or cover.
Not strange, just a bit unusual.