I am pleasantly fascinated by your knowledge of cats. Are you a veterinarian? Excuse the question because there I am a little ignorant in that subject... But in my mom's home, we have always had cats,¡always! , and I had never stopped to think about the different ways they sleep and certainly everything that you have exposed I am imagining because I have seen it. Everyday We learn something new. Thank you catwomanteresa. Greetings.