What do you know about Everton Mattress Manufacturing Co. in Twin Falls Id.
Hi miwillia,
They are a 4th generation manufacturer and are also a Restonic licensee which supplies retail stores with Restonic mattresses in several states in the area. They make a range of mattresses including latex, gel memory foam, and innersprings and from the one conversation I had with them they appeared to be transparent about the materials they use. They certainly fit the profile of the type of manufacturers I like to deal with. They would be well worth a visit and would be one of the better choices for anyone in the Twin Falls area where they also sell factory direct to consumers at their store.
Phoenix