Product Description The Simmons Mattress Backcare 4 is a premium mattress designed for those who prioritize back support and comfort. Featuring Pocketed Coil® technology and e-ION Crystal™ technology, this mattress offers superior support and sleep benefits. Its tight-top surface ensures a firm sleeping experience, making it ideal for individuals seeking durability and quality, all crafted in Japan. Key FeaturesPocketed Coil® Technology: Provides optimal support and minimal motion transfer for uninterrupted sleep.e-ION Crystal™ Technology: Emits beneficial Negative-Ion and Far-Infrared rays for enhanced sleep quality.20% Better Support: Reduced coil diameter for optimal back support.Tight-Top Sleep Surface: Offers a flatter, tighter surface for those who prefer firm support.Tested & Proven Durability: Rigorously tested for quality assurance.Made in Japan: Fully imported, ensuring high manufacturing standards.Ideal For The Simmons Mattress Backcare 4 is ideal for individuals seeking superior support and comfort, especially those who prefer a firm mattress for better back care. Perfect for anyone looking to enhance their sleep quality with advanced technology and proven durability.