gruesome to think about, but I kind of like the idea:
Cardboard hospital bed transforms into coffin when coronavirus patients die
Rodolfo Gomez, from Colombia, designed the bed-coffin combo after he saw disturbing images of coronavirus victims and other dead people being dumped in the streets of Guayaquil, Ecuador
https://www.mirror.co.uk/news/world-news/cardboard-hospital-bed-transforms-coffin-22073683
Convenient, cheap and you get to try it out before, well, you know.