An inchworm will stay in their cocoon for about 2 weeks. They tend to stay in an extra week most of the time.
As long as they stay babies is how long they stay babies.
they curl up in there
about ten days
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.
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.
I do not know the exact answer but most praying mantis live in warm and subtropical areas
Normally if they get lucky just 2 weeks but if not at least a month :)