The Chatam & Wells Daniella Collection, by Spring Air, combines a premium Independent Coil System with 100% Natural Talalay Latex to create an exceptionally comfortable and supportive mattress. A layer of low profile encased coils act as an advanced conforming support layer to relieve stress and pressure points. A third layer of coils, Micro Coils, adds more customized support. The portrait edge support system encases the mattress edge giving you a full, consistent feel across the entire mattress surface. Joma Wool just beneath the cover keeps you cool in the Summer and warm in the Winter. This Firm Euro Top mattress is ideal for a back sleeper or some side sleepers.