Towel warmers exist. Wipe (diaper cleanup) warmers exist.
But a simple container that warms diapers themselves does not exist online(!)
There are towel warmers but they are not optimized to warm disposable diapers, nor are they marketed to new parents.
Think how much you enjoy carrying fresh laundry from the dryer or putting warm laundry on. I think prewarmed diapers would benefit babies.-- beanangel, Apr 04 2018random, halfbakery