I was wondering the same thing, it's in the original article:
> I ordered a custom-sized bamboo bed set from Advanced Bedding. Their website had a form where I could just fill in the dimensions so it seemed like it would be the only purchase that didn't involve any human interaction, but they called to confirm anyway as the numbers were "unusual."
> I ordered a custom-sized bamboo bed set from Advanced Bedding. Their website had a form where I could just fill in the dimensions so it seemed like it would be the only purchase that didn't involve any human interaction, but they called to confirm anyway as the numbers were "unusual."