The Heatsheets Survival Blanket is for emergency situations, not for those who have a weird cocoon fetish. Anyway, I’m pretty sure you can’t eat your way out of it after metamorphosis. It fits two people and conveniently has survival and first-aid instructions printed directly on the blanket.
The bright orange color makes it easier for rescuers to spot, though with both people in it and moving around it would probably look like the blob from a helicopter. Hopefully they will want to investigate rather then call for an airstrike. Apparently it reflects up to 90% of radiated body heat so don’t be afraid to get a little frisky while waiting for help. Say, did it occur to anyone that you might have to leave the safety of the blanket to read some of those fancy first-aid instructions? That’s not good if you are in freezing conditions.