Does this mattress work on an adjustable base, and what foundation does it need?

Yes, it is rated compatible with adjustable bed bases and flexes with the frame. It also sits well on a sturdy platform bed, a slatted base with gaps under 3 inches, or a strong box spring. Because it is a tall, heavy 16-inch bed, make sure the foundation is robust and fully supportive. A solid, even base keeps the coil system level and protects the warranty against uneven sag.