I can only sleep in these exact conditions

I only ever sleep on my front, one arm under the pillow one on top and one leg bent upwards and to one side, I've been thinking it was a habit but now I'm not sure if it's a bit ocd, I'm round a mate's, I usually crash on a mattress on the floor but there's a few of us, been drinking and If I'm honest I couldn't be assed to move so i'm on one of the couches, I've spent the last 3 hours trying to sleep and can't plus before when I've tried sleeping in a different position I give up, so, IIN? anyone else have something like this?