He's about 4 & he has started using his bed more just recently - he's out & about all night & then dives into the cat cave after breakfast. It's odd as he never really liked the blanket before now but he's suddenly got really attached to it.
I just have a feeling that it happens more in females than in males. One of ours does it, she crawls on my stomach, "pounds" me and then settles by sucking my shirt or dressing gown.
One of mine does that when I wear a particular cardigan. He snuggles his head into the crook of my arm and sucks it. As ummmm said they produce a lot of dribble!!