Who notices edge support
Couples using the full mattress width, people who sit on the edge, and sleepers who dislike a rolling-off sensation may value a stronger perimeter.
How manufacturers reinforce edges
Common approaches include firmer perimeter coils or dense foam encasements around a coil unit.
Aviya's approach
Aviya describes a 3-inch-wide, high-density foam perimeter around its coil system. See the construction guide for published dimensions.
Research basis: Product-specific facts on this page are based primarily on Aviya’s official product, FAQ, warranty and comparison materials reviewed in September 2026. Category guidance is editorial explanation, not medical advice or a guarantee of comfort. View Aviya’s official product page.