Firmness
Type
Pocket Spring
Depth (cm)
30
Number of Layers
5
Trial Period (nights)
Warranty (years)
10
Price Range
£1,049 to £2,299
Best Sleeping Position(s)
Certifications
Assessed from the specification published by MattressNextDay, captured September 2026, and from regular price comparison across our UK retail partners.
This mattress is a good fit if you prefer a firm feel and care about what's inside your bed. The fillings are natural and traceable: British wool certified to the Responsible Wool Standard, plus cotton that wicks moisture away, which means it should sleep cooler than foam-heavy alternatives. If you're a hot sleeper, that breathability is a genuine advantage. The ReActive 8-turn pocket springs are designed to respond quickly as you move, so you get support that adjusts through the night rather than a rigid platform. Hypnos backs it with a 10-year guarantee, and the choice of nine sizes, from UK Single up to Emperor and EU sizes, means awkward bed frames are less of a problem than usual.
Key Features & what's inside
- Cover. An unbleached, chemical-free cotton cover in Belgian damask, which means a soft, breathable sleeping surface without harsh treatments. Damask is a tightly woven fabric that wears well over time.
- Comfort fillings: British wool. Insulating British wool cushions the whole body, which means gentle pressure relief rather than the sink-in feel of memory foam. Wool also helps keep the surface temperate.
- Comfort fillings: cotton. Cotton wicks away excess moisture and works alongside the wool to regulate temperature. In practice, that means a drier, more comfortable feel in both summer and winter.
- Comfort fillings: Solotex and eOlus fibres. Recycled Solotex and eOlus fibres add to the cushioning while promoting airflow. That extra breathability matters most if you tend to overheat at night.
- Support system: ReActive pocket springs. A core of ReActive 8-turn pocket springs supports key areas of the body. Each turn lets the spring react faster to your movements, which means the mattress adjusts as you change position rather than lagging behind.
Layer details from mattressnextday.co.uk product page, September 2026.
Who's it NOT for?
This is a firm mattress, so lightweight side sleepers may find it doesn't yield enough at the shoulder and hip. If you love the cocooning hug of memory foam, the springy, natural feel here will disappoint. And with prices starting at £1,049, budget shoppers will find better value elsewhere, though rarely with fillings this good.
Hypnos Majesty Ortho Sublime Mattress
Is the Hypnos Majesty Ortho Sublime firm or soft?
It's a firm mattress. The wool and cotton fillings add gentle surface cushioning, but the underlying feel is supportive rather than plush. It suits back and front sleepers who like a firmer base, although lightweight side sleepers may find it a little too unyielding.
Does the Hypnos Majesty Ortho Sublime come rolled in a box?
No, it's delivered flat rather than rolled and boxed, which protects the natural wool and cotton fillings. MattressNextDay lists free next-day delivery, though that's a retailer offer rather than a Hypnos guarantee, and it also offers old mattress removal as a £39 add-on.
What guarantee does the Hypnos Majesty Ortho Sublime have?
It comes with a 10-year Hypnos manufacturer guarantee. Note that no trial period is mentioned on the retailer listing, so check return terms with your chosen retailer before ordering if you'd want the option to send it back.
What sizes does the Hypnos Majesty Ortho Sublime come in?
Nine sizes in total: UK Single, Small Double, Double, King, Super King and Emperor, plus EU Single, Double and King. Prices range from £1,049 to £2,299 depending on the size you choose.
What is the Hypnos Majesty Ortho Sublime made of?
It's 30cm deep, made in the UK, with RWS certified British wool, sustainably sourced cotton and recycled Solotex and eOlus fibres over a core of ReActive 8-turn pocket springs. The cover is unbleached, chemical-free cotton in Belgian damask, and it meets the BS7177 fire safety standard for domestic use.
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