Literal:
* The caterpillar cocooned itself in a silken web, waiting to transform into a butterfly.
* The sleeping bag felt like a cocoon, keeping me warm and protected from the cold.
* The artist created a cocoon of blankets and pillows in the corner of her studio, a haven for creativity.
Figurative:
* After a stressful day, she retreated to her bedroom, seeking the cocoon of silence and solitude.
* The city felt like a cocoon, protecting its inhabitants from the harshness of the outside world.
* The team cocooned themselves in the office, working tirelessly to meet the deadline.
* He cocooned himself in his grief, refusing to speak to anyone about his loss.
As a verb:
* The moth cocooned itself in a silken chamber.
* She cocooned herself in a warm blanket, watching the snow fall.
These are just a few examples. You can use "cocoon" in many creative ways, depending on the context of your sentence.