The Signatory Superb marks the entry into a refined two-layer spring structure, pairing hand-opened long-stranded Austrian Moosburger® horsetail with hand-teased Real Shetland Wool blended with cashmere. This fusion shapes both the feel and the thermal behavior of the sleep surface, delivering a balanced combination that a single filling cannot achieve on its own.
The ticking blends wool, silk, and viscose for breathability and softness, conditioning the microclimate from the moment of contact. The upholstery unfolds in layers: resilient British fleece wool for moisture regulation, followed by the long-crimped horsetail to resist compression and preserve loft, then Real Shetland Wool blended with cashmere for a finer, softer transition that moderates temperature without trapping heat. Real Shetland Wool and organic cotton complete the core to add body and absorption through the night. A two-layer hand-nested vanadium steel calico pocket spring system—with 3,296 springs in a King size—responds independently to weight and movement for continuous support, while the edge-to-edge perimeter is firmed by coir, wool border and four rows of hand side-stitching to extend the usable surface over years of use. Each mattress is hand-tufted with woollen tufts and twine to compress the filling layers into a stable, consistent depth at every tuft point.
- Two-layer vanadium steel calico pocket spring system with independent weight response
- Long-stranded Austrian Moosburger® horsetail paired with Real Shetland Wool and cashmere
- Breathable ticking of wool, silk, and viscose for early microclimate conditioning
- Edge-to-edge support with reinforced perimeter and hand side-stitching
- Hand-tufted construction that maintains depth consistency over time
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