Planet Money covered that: https://www.npr.org/sections/money/2018/12/13/676538506/why-are-there-so-many-mattress-stores https://www.npr.org/sections/money/2018

Planet Money covered that: https://www.npr.org/sections/money/2018/12/13/676538506/why-are-there-so-many-mattress-stores https://www.npr.org/sections/money/2018/12/13/676538506/why-...