You could be on to something with this... Our fluffy cat would snuggle under the blankets right down near our feet, and would happily lay there until morning, he'd done it for years, until... One night we was sleeping away (as you do) and I woke up to the hubby half asleep carrying on like a pork chop because the cat had clawed at his "bits"... It must of hurt because he was OBLIVIOUS to the stench wafting from under the blankets - and it was a god awful smell! I don't know which of us done it, but my poor puff wanted out. Since then he snuggles up near our chests (still under the blankets) and demands that we tuck the blanket in around his little head with his face poking out.