Serta Mattress 9-Inch Tall Box Foundation - Split King

The Serta 9-Inch Tall Box Foundation in Split King size delivers essential support that helps your mattress perform at its best while extending its lifespan. This sturdy bed base adds 9 inches of height to your sleeping surface, making it easier to get in and out of bed while creating a polished, finished look in your bedroom. The split design is ideal for adjustable bed frames or couples with different comfort preferences, and it effectively minimizes motion transfer so you won't feel your partner's movements throughout the night. Built for durability and designed to work seamlessly with your mattress, this foundation creates a stable, supportive sleep system that promotes better rest night after night.