Bring the hole bag up. It will take time to acclimate so keep revisiting the bag. It will be the kind of thing where you'll want to bring it above the case for storage and dry it some.
Through the process, while in higher case, take the opportunity stretch out the crinkles creases, sort it to likened bodies.
Revisit it to see that the case is down enough to where it will not turn to mush.
Storing it to dry will open the opportunity for easy breakage.