Petto Petto no Mi

Name: Petto Petto no Mi (From Ka-petto=Carpet so Carpet Carpet Fruit)
Type: Paramecia
Abilities: Petto Petto no Mi turns the user into a carpet man. From the moment the user eats the fruit, his body is composed of strings rather than muscle and bones. Also, the user's body behaves as a carpet. The user can transform into a carpet and slide on the ground in a carpet form. If the user slides and he is about to run into a person, he won't run into the person. Instead, he will move below them just like a carpet is stepped by humans. This makes the carpet fruit very good for sneak attacks against other people. Finally, when the user is in the normal form, he can transform himself into a carpet form in order to avoid getting damaged from blunt attacks. Any blunt attack does not affect a carpet at all and so the user avoids getting damaged by regular punches, kicks and other abilities like these. However, cutting attacks still cut the user and so he can be damaged by air blades or by slashes. Also, elemental attacks can damage the user, too. Fire can burn him into the carpet form and poison can poison him, even in the carpet form.

would the user feel things in the carpet form and how thick will it be,
when someone stands on the user in carpet form does this has effect on the user and can he change back when someone is standing on him, or when he is nailed to the ground