Cullinan, Made by Sealy | Luxury Mattress Inspired by the Cullinan Diamond

One of a Kind, by Design
Inspired by the world’s most legendary diamond, Cullinan, made by Sealy, is a rare expression of craftsmanship, innovation, and elevated design — a mattress conceived not only to support sleep, but to honour it. From Sealy, a brand synonymous with trusted sleep innovation, this creation reflects a legacy of excellence.

Just as the Cullinan Diamond redefined rarity and brilliance, the Cullinan mattress sets a new benchmark in luxury sleep — refined, considered, and undeniably one of a kind.

Sculpted by Craft, Defined by Luxury

The Cullinan is entrusted only to Sealy’s most skilled craftsmen. Every element is shaped with intention, every detail perfected through expertise, from its elegant cream palette to its quality finishes and elegant, durable foundation. The Cullinan introduces a quiet confidence into the bedroom — contemporary, sophisticated, and timeless.

This is luxury without exaggeration. Luxury that speaks through quality.

The Surface of Indulgence

At its first touch, the Cullinan reveals its refined comfort. Wrapped in CoolTouch Piqué Woven Fabric, the surface delivers a refreshing, cooling sensation, instantly inviting and soothing. Expertly quilted with Thermobond wool and layered speciality foams, the mattress creates a perfectly balanced sleep climate — breathable, temperature-regulating, and luxuriously soft.

Enhanced with Healthguard anti-microbial treatment, the sleep surface maintains a cleaner, more hygienic environment, ensuring peace of mind.

Precision Comfort, Layer by Layer

Beneath the surface, innovation unfolds in layers. The SynerFlex Foam Layer gently adapts to the body’s contours, relieving pressure while maintaining essential spinal alignment. Paired with the Motion Airflow Coil layer, featuring individually responsive mini-pockets, the Cullinan delivers superior motion isolation and balanced support — allowing the body to rest naturally and deeply.
The result is a sleep experience that responds intuitively, night after night.

Tailored Luxury, Personalised Sleep

True luxury is choice. For those who seek heightened indulgence, the Cullinan offers an optional luxury comfort overlay, designed to soften the sleep surface while preserving support. This personalised addition enhances pressure relief and cradles the body, creating a sensation of weightless comfort.
It is an experience tailored to individual preference — because no two sleepers are the same.

A Foundation Built on Innovation

At the core of Cullinan, made by Sealy, lies the PostureTech Advanced Innerspring System — a self-posturising technology informed by orthopaedic research. This intelligent system responds dynamically to body weight and movement, increasing firmness where required to deliver tailored, continuous support.

Encased within Duraflex foam edge support, the mattress maintains structural integrity, enhances stability, and maximises usable sleep space — ensuring exceptional performance and longevity.

Enduring Design, Lasting Presence

Completing the Cullinan is a stylish, durable foundation, engineered to absorb stress and extend the lifespan of the mattress. Finished with non-slip gripper fabric and extra-padded sides on a timber surround, the foundation complements the mattress with architectural strength and refined aesthetics.
It is where form meets function beautifully.

One of a Kind

The Cullinan, made by Sealy, a mattress created for those who recognise quality, appreciate craftsmanship, and understand that exceptional sleep begins with exceptional design.

Because sleep should never be ordinary.

And the truly extraordinary is always one of a kind.

Contact Sealy for more.