Gave him a name, lame as it is, I like it. My love for bunnies grows once again

Super Long Bio Funtime! Don't mind me, just spilling thoughts that tend to flood my mind.

Mysterious "living" plush doll
No skeletal system
Genderless, prefers to be male

Has a zipper along his "spine"
If unzipped, his body will go limp and "rag doll"
If unzipped for a long period of time(more than a day), he will go into a hibernating-like sleep until zipped again.
While unzipped, stuffing can be added or removed to him

His body is solid, almost flesh-like when zipped, becomes plush-like when unzipped
Innards completely made of fluffy stuffing
Body weight is very light, though surprisingly is not blown about easily by heavy winds.
Head consists of near-organic eyes, teeth, and mouth, though all artificial
In his natural state(left), stuffing cannot be removed at all in any way

When stuffing is applied in ways that change his proportions(such as bodybuilder-like), his body will shift and solidify appropriately and proportionately when zipped up after stuffing.
His body can be shifted into a few more ways than seen here, always humanoid.
Has a stuffing limit that cannot be passed by any means.
Limit stuffing will just "spill" from the zipper opening.
Fabric-like skin/fur will not tear if limit is reached.
Near-limit is shown on the right.

No brain, internal organs, or nervous system.
Can speak, eat, think, feel, blush, and cry tears.
Food mysteriously disappears when he consumes them, not found within his stuffing at all.
Though he never feels hungry or full, he enjoys eating food, but does not do so mindlessly.
Average adult mentality/intelligence, sensitive and slightly naive/childish
His body is sensitive in particular places
Is still aware of surroundings, can feel, and can speak while unzipped until "hibernation".

Cuts or holes made in his body causes him great pain
Cuts or holes will "restitch" themselves over a period of time, much like flesh wounds
He has been dissected in the name of science during one point of his existence, his pained screams still haunt the doctors to this day.

Body parts if removed do not hurt near as much as cuts or holes.
Removed body parts will not move until reattached, but someone must reattach them, he cannot reattach them himself no matter how much he tries.
If decapitated, his body will go limp but his head will still be able to act normally.. just without a body.
His consciousness seems linked to the state of his zipper.
He can sleep like the average person, though he does not need to.

Currently living with a loving friend that tends to keep him in the buff-fluff form from time to time. Though he does not hate this form, he is embarrassed by it. He is physically weak, he cannot lift. He likes to be carried and cuddled. Hates being thrown. Afraid of many things. His lips do not close all the way, so his sharp teeth are always shown.