What is "cocooned"

Usage examples of "cocooned".

But then a wave of torpor insinuated itself as a last vestige of the chemical washed across his forebrain, sinuous molecules urging sleep, a resumption of the comforting nothin ness that took away the fear of being cocooned like this.

She saw the big pendulous folded-over shapes of cocooned people, inert and black.

They are cocooned in the veil of the surrounding cloud, but as each new star ignites, a fierce stellar wind begins to blow, eroding the cloud, until finally there is no cloud, and the new star is revealed.

I realized that here was one of the guys who cocooned me in a damned body bag for several hours and then nearly drowned me in the river.