Harrison Spinks Onyx 7750 Mattress

Harrison Spinks Onyx 7750 Pocket Sprung Mattress

Enjoy naturally responsive comfort and premium British craftsmanship with the Harrison Spinks Onyx 7750 Mattress, available from Bridge Bedding Centre in Essex.

Handcrafted in Yorkshire, the Onyx 7750 combines up to 7,750 individual pocket springs in a king size with layers of naturally breathable fillings including British wool, cotton, hemp and flax. The result is a supportive, comfortable and highly breathable mattress with a balanced medium tension, ideal for customers looking for natural comfort without an overly firm feel.

Advanced 7,750 Pocket Spring Support

At the heart of the Harrison Spinks Onyx 7750 is an advanced multi-layer spring system featuring Cortec™ pocket springs and HD micro springs.

Each spring works independently, responding to your body weight and movement to provide more personalised support. This helps distribute pressure more evenly across the mattress, promotes healthy spinal alignment and reduces movement transfer between sleeping partners.

Key Features & Benefits

• Up to 7,750 pocket springs in Kingsize – provides detailed, responsive support across the mattress.
• Cortec™ pocket spring technology – designed to contour to the body while supporting a more sustainable mattress construction.
• HD micro springs – additional spring layers enhance pressure relief and fine-tune support.
• Medium tension – offers a balanced combination of support and cushioning.
• Natural British wool – breathable and temperature regulating for comfortable sleep throughout the year.
• Cotton comfort layers – naturally soft and breathable with good moisture management.
• Home-grown hemp and flax – durable natural fibres that improve airflow and help create a fresher sleeping environment.
• Fully turnable design – allows both sides of the mattress to be used, helping maintain comfort and extend mattress life.
• Seasonal sleeping surfaces – dual-sided construction offers adaptable comfort across warmer and cooler months.
• Two rows of hand side-stitching – reinforces the mattress borders for improved edge support.
• Edge-to-edge sleeping surface – makes better use of the full mattress width, particularly useful for couples.
• Reduced partner disturbance – individually moving springs help minimise motion transfer.
• Foam-free construction – relies on springs and natural fibres rather than conventional foam comfort layers.
• Glue-free spring technology – supports easier recycling at the end of the mattress's life.
• Chemical-free woven cover – provides a naturally comfortable sleeping surface.
• Handcrafted in Yorkshire – made using traditional British bed-making skills.
• 10-year guarantee – added peace of mind for long-term ownership.

Naturally Breathable Comfort

The Harrison Spinks Onyx 7750 uses carefully selected natural fibres to create a more breathable sleeping environment.

Wool helps regulate temperature by retaining warmth when it is cooler and releasing excess heat when conditions are warmer. Cotton, hemp and flax further improve airflow and moisture management, helping the mattress feel fresher and more comfortable throughout the night.

This makes the Onyx 7750 an excellent option for customers who prefer a naturally breathable alternative to heavily foam-based mattresses.

Medium Comfort for Balanced Support

With its medium tension, the Onyx 7750 offers a versatile comfort level that suits many different sleeping preferences.

The multiple layers of pocket springs provide progressive support, allowing the mattress to gently adapt to the body's contours while maintaining good underlying stability. This makes it particularly well suited to many side and back sleepers.

Fully Turnable for Long-Lasting Performance

The Onyx 7750 is a double-sided, fully turnable mattress.

Regularly turning and rotating the mattress helps distribute wear more evenly and allows the natural fillings to settle consistently, helping preserve comfort and support over the long term.

Hand Side-Stitched Edge Support

Traditional two-row hand side-stitching strengthens the mattress borders and improves stability towards the edges.

This helps maximise the usable sleeping surface and reduces the feeling of rolling towards the edge of the mattress.

Sustainable British Craftsmanship

Harrison Spinks is well known for combining traditional mattress-making with a strong focus on natural and recyclable materials.

The Onyx 7750 is designed without conventional foam and uses recyclable spring technology alongside natural fibres including wool, cotton, hemp and flax. Many of these fibres are grown or sourced close to Harrison Spinks' Yorkshire manufacturing operation.

Product Specifications

Why Choose the Harrison Spinks Onyx 7750?

The Harrison Spinks Onyx 7750 Mattress is an excellent choice for anyone looking for a premium naturally filled mattress that combines sophisticated spring support with traditional British craftsmanship.

With up to 7,750 responsive pocket springs, breathable wool, cotton, hemp and flax fillings, reinforced hand side-stitched borders and a fully turnable construction, the Onyx 7750 delivers the comfort, support and durability expected from Harrison Spinks.

Discover the Harrison Spinks Onyx 7750 Mattress at Bridge Bedding Centre Essex and enjoy beautifully balanced, naturally breathable sleep.

Delivery is free of charge to mainland UK addresses only and we aim to deliver this item within  6 weeks.

After you place your order, we will contact you via email to confirm dispatch or to book a delivery date, if for any reason your delivery will be longer than expected we will advise at this point and if you are not satisfied with the delay we will automatically refund your money