Also, these types of mattresses have an expiration, and I doubt they are manufactured on demand. If they are not sold within a specified time and stored proper

Also, these types of mattresses have an expiration, and I doubt they are manufactured on demand. If they are not sold within a specified time and stored properly (not stuck in a hot warehouse or cargo container), they are useless. Also, mattresses are not currently being subsidized by adware/analytics apps and companies.