Harrison Spinks | Onyx Ortho 7750

  • £949.00
    Unit price per 
Tax included.

The Onyx 7,750 from the Harrison Spinks Optimum Support collection of mattresses is made with Cortec™ Quad recyclable pocket springs, layered with HD 2500 Micro Springs and Posturfil pocket springs that adapt to your body’s contours to relieve pressure and provide greater comfort and lumbar support.

This is a seasonal turn mattress with a warm side featuring a wool blend to keep you warm during the colder months, and a cool side featuring a moisture-wicking cotton blend close to the sleeping surface, keeping you fresh and dry during the warmer months.

All 7,750 pocket springs within the mattress are recyclable, along with all-natural sustainable fillings including British wool, Egyptian cotton, kapok, lustrous alpaca, home-grown firming needled hemp and sumptuous mohair.


  • Materials: British Wool / Kapok / Hemp / Mohair / Egyptian Cotton
  • Natural and FR chemical free mattress cover
  • Natural British wool
  • 7,750 innovative springs; including 100% recyclable advanced Cortec™ Quad pocket springs and dual layers of pressure relieving HD 2500 micro springs.
  • Zip & Link Mattress options available
  • Only available in Extra Firm
  • seasonal turn mattress with a warm side and a cool side


  • True edge sprung base /or/ Padded top base
  • Choice of fabrics
  • Choice of storage options

# Choice of headboards available - at extra cost
# Full headboard range available in store

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