Yeah - i can be totally relaxed but not sleeping for a long time on my back, but to fall asleep i usually have to turn over on my side and curl inward or at least partially face down. I've thought about that - probly protecting the privates area - making it less accessible.
We are often troubled, but not crushed;
sometimes in doubt, but never in despair;
there are many enemies, but we are never without a friend;
and though badly hurt at times, we are not destroyed.
- Paul, II Cor 4:8-9