they curl up in there
The Cinnabar Moth will stay in their cocoon for a period of nine months. They cocoon themselves in the early summer and do not emerge from the cocoon until the next spring.
An inchworm will stay in their cocoon for about 2 weeks. They tend to stay in an extra week most of the time.
about ten days
Black Swallowtail butterflies stay in their cocoon for 9 to 11 days.
about ten days
a month or a little bit more
1 week
Probably about ten days.
Normally if they get lucky just 2 weeks but if not at least a month :)
dhjagtrwhte
First of all, the larva doesn't spend very much time in the cocoon. Shortly (around a few hours to a day) after the larva spins the cocoon it molts into the pupal stage. the pupa can remain in the cocoon for any amount of time as it depends on the time of year.
They emerge from their cocoons about ten days after spinning them.