Better than goose parts
Memory foam is one of those little pieces of technology that actually improve on what came before by kind of a wide margin. For thousands of years, humans used (at best) a bag of dead goose parts as their go-to head support during sleep, and for some reason it took space flight engineers to decide that there’s probably a better way to go about it.
If you’ve used memory foam, you probably love memory foam. If not, here’s your chance to do it on the cheap. You’ll never go back.
(You’re welcome, geese.)