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Foam Encasement
Only Serta offers edge support of an advanced, dovetail-interlocking foam encasement design in select models.
Serta's unique Foam Encasement offers these benefits:
1. Extends the sleeping surface all the way to the edge, helping to eliminate edge "roll-off."
2. Increases seating edge support. With its exclusive locking system, Serta's foam encasement provides years of durable edge support.
3. Working in conjunction with the foundation, this new foam encasement system helps reduce side-to-side mattress movement and minimize the impact of one sleeper's movements on another.