Grand Extra Firm
Uncompromising Support. Absolute Stability.
The Grand Extra Firm is a masterpiece of stability and craftsmanship. As a standout in the Heritage Collection, this 11.5-inch double-sided mattress focuses on the purity of support. It is packed with six dense layers of natural cotton, providing a breathable and firm foundation that naturally regulates temperature and resists body impressions.
Beneath its hand-tufted surface lies a 713-coil individually wrapped system that provides targeted support while isolating motion—a rare feature in extra-firm mattresses. To ensure this level of support lasts for decades, it is paired with Shifman’s legendary 8-way hand-tied boxspring, which acts as a powerful shock absorber. Hand-tufted and built to be flipped, the Grand Extra Firm offers a sophisticated, ultra-supportive sleep sanctuary that refuses to compromise on quality.
TECHNICAL SPECIFICATIONS
Natural Cotton
Mattress Type
Double Sided
Adjustable Base
Mattress Height
Super-Firm High Density FoamThe Shifman Difference
Beyond our heritage lies a devotion to the four hallmarks of craft that define the world’s finest sleep.
Natural Materials
Pure cotton, New Zealand wool, and cashmere create a breathable, cooling sleep environment.
Two-Sided Design
A rare commitment to double-sided construction for extended comfort and heirloom durability.
8-Way Hand-Tied
Fine-furniture boxsprings that conform to your body and absorb weight for ultimate support.
Hand-Tufted
Our exclusive Sanotuft® technique prevents shifting and bunching without the use of buttons.