The Signatory Superb introduces a refined two-layer spring architecture, pairing hand-opened long-stranded Austrian Moosburger® horsetail with hand-teased Real Shetland Wool blended with cashmere. This thoughtful combination shapes both the feel and the thermal behavior of the sleep surface, delivering a responsive yet luxurious experience that a single filling cannot achieve.
The ticking blends wool, silk, and viscose for breathability and softness, while the core upholstery layers build resilience and temperature regulation from the inside out. A careful progression of materials—British fleece wool, long-crimped horsetail, then Real Shetland Wool with cashmere—creates a balanced transition that modulates temperature without trapping heat, finished with Real Shetland Wool blended with organic cotton for body and absorption. The spring system features two layers of hand-nested vanadium steel calico pocket springs (3,296 in King size), delivering independent support and durable loft, with the border reinforced by coir and wool and completed by hand side-stitching along the perimeter for edge-to-edge usability. Each mattress is hand-tufted with woollen tufts and twine to compress the fillings into a stable, consistent depth at every tuft point.
- Two-layer vanadium steel pocket spring system with independent action for precise support
- Long-crimped horsetail and premium wool blends for durable loft and temperature balance
- Breathable ticking of wool, silk, and viscose to condition the microclimate at contact
- Edge-to-edge stability with reinforced border, coir and wool, and hand side-stitching
- Hand-tufted construction for consistent depth and material compression
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