Firmness
Medium Firm
Type
Pocket Spring
Depth (cm)
30
Number of Layers
5
Trial Period (nights)
100
Warranty (years)
10
Price Range
£1,112 to £2,699
Best Sleeping Position(s)
Certifications
Assessed from the specification published by Mattress Online, captured September 2026, and from regular price comparison across our UK retail partners.
This is a mattress for people who care where their materials come from. The wool is Responsible Wool Standard certified, the Solotex padding is made from recycled plastic, and Hypnos holds a Royal Warrant from His Majesty King Charles III. The natural fibres do practical work too: wool and cotton are breathable, which means less overheating if you tend to sleep warm. Three rows of firmer springs around the border give edge support, so you can sit on the side or sleep near the edge without feeling like you might roll off. Yes, the from-price of £1,112 is a serious spend, but the construction and the 10-year guarantee listed by Mattress Online help justify it.
Key Features & what's inside
- Cover. A blend of cotton, viscose and damask fibres with a chemical-free fire retardant treatment, which means it meets fire safety standards while staying kind to your skin. It's a soft, traditional-feeling surface rather than a synthetic one.
- Comfort layer. Solotex padding made from recycled plastic sits just beneath the cover. It creates the cushioned initial feel you notice when you first lie down.
- Wool filling. British wool, certified to the Responsible Wool Standard, acts as a natural insulator. Its breathable structure adjusts to your body temperature, so you're less likely to wake up too hot or too cold.
- Cotton filling. Natural cotton fibres wick away moisture and help regulate temperature through the night. If you're a hot sleeper, this layer works alongside the wool to keep things fresh.
- Support system. A core of 1200 ReActivePro six-turn pocket springs responds to each part of your body independently, which means your partner's movements are less likely to disturb you. Three rows of extra durable springs around the border firm up the edges.
Layer details from mattressonline.co.uk product page, September 2026.
Who's it NOT for?
If you want the contouring, hug-like feel of memory foam, this traditional pocket spring build won't give you that. It's also a stretch at this price if you're furnishing a guest room, and anyone hoping for a genuinely firm, orthopaedic-style surface should look elsewhere: Hypnos rates this as medium.
Hypnos Denhome Luxury Comfort Mattress
How firm is the Hypnos Denhome Luxury Comfort mattress?
Hypnos describes it as medium, though you may see it listed as medium firm elsewhere. In practice that means a balanced feel that suits most sleeping positions, and at least one owner reported it felt slightly firmer than they expected, so err on the softer side of your expectations.
Does the Hypnos Denhome come with a trial period?
Mattress Online lists a 100-night trial with this mattress, along with a 10-year guarantee. Those are the retailer's own terms rather than a Hypnos-wide promise, so if you buy elsewhere, check that seller's trial and returns policy before ordering.
What sizes does the Hypnos Denhome Luxury Comfort come in?
Eight sizes are available: UK Single, Small Double, Double, King, Super King and Emperor, plus EU Double and EU King. Prices run from £1,112 to £2,699 depending on the size you choose.
Is the Hypnos Denhome good for hot sleepers?
It should be. The fillings are British wool and natural cotton, both breathable fibres that adjust to your body temperature and wick away moisture, and the pocket spring core allows air to move through the mattress in a way solid foam can't.
How is the Hypnos Denhome delivered?
Mattress Online offers free delivery to most of mainland England and most of Scotland, Wales and Northern Ireland, with a two-hour time slot and weekday next day delivery available. Room of choice delivery costs £20.00 and old mattress removal £35.00. These are the retailer's terms, not the brand's.
Couldn't find an answer to your question? Send us a message