The Knell Medium mattress by Englander is designed for sleepers who enjoy a balanced feel—not too soft, not too firm. Its top layer features a durable, custom-milled cover chosen for long-lasting comfort. Beneath that, medium foam creates a gently contouring surface that cushions pressure points while still providing enough bounce and responsiveness to support body movement naturally.

The 630 Edge Zoned Pocketed Coil Support System with Eco-Base delivers zoned ergonomic support to promote proper spinal alignment and reduce motion transfer for a more peaceful night’s sleep. Foam-encased coils reinforce the edges and maximize the usable surface, making it ideal for couples or solo sleepers alike. With an 8-inch profile and adjustable-base compatibility, the Knell Medium is a smart, supportive option with built-in lumbar support—offering lasting comfort backed by a 5-year prorated warranty.