Double Bond Mattress
Dual-Sided Mattress:Some manufacturers use the term "Double Bond" to refer to mattresses that are reversible or have different firmness levels on each side. This allows users to flip the mattress for a different feel or support level, providing versatility.
Bonded Layers: It could also imply a mattress where multiple layers are bonded together using a special process or adhesive. This bonding can enhance the mattress's durability and stability, preventing the layers from shifting over time.