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The CustomFlex Pillow features a layered construction combining a foam-enclosed Aerocoil® spring inner pillow with two Simba Renew® outer pillows, allowing the firmness level to be adjusted by reordering the layers. The Aerocoil® spring core provides structured support, while the Simba Renew® layers add softer cushioning around it. A cotton cover with Stratos heat control technology helps regulate temperature during sleep.
