How do you get bubblegum off of fabric?

So our friend’s child was chewing this huge wad of bubblegum the other day. Later, we found it stuck to my son’s sleeping bag (my son uses it as a blanket). Any ideas about getting it off? My wife thinks that freezing bubblegum allows it to be chipped away, but we don’t have any way of getting the entire sleeping bag frozen.

Help!