Firmness
Medium Firm
Type
Pocket Spring
Depth (cm)
24
Number of Layers
6
Trial Period (nights)
100
Warranty (years)
5
Price Range
£755 to £1,979
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 mattress leans heavily on natural and recycled materials: Yorkshire wool for insulation, cotton to wick moisture, hemp for breathability, and an eco-polyester layer made from 100% recycled materials that can be recycled again. That combination means it regulates temperature well without relying on foam, a genuine plus if you tend to overheat at night. It's a National Bed Federation Approved Brand and handcrafted in the UK. At £755 to £1,979 it's a considered purchase, but the spring count and quality of fillings go some way to justifying it. Mattress Online lists a 100-night trial and a 5 year guarantee with this mattress, though those are the retailer's own terms rather than the manufacturer's.
Key Features & what's inside
- Wool. Wool comfort fillings that stay cosy through the night, which means natural insulation in winter and temperature regulation in summer. It's the layer closest to you, so you feel its softness first.
- Cotton. Natural cotton fibres that wick away moisture, which means a fresher, drier sleeping surface. Helpful if you run warm at night.
- Hemp. An eco-friendly fibre that's naturally breathable and durable, adapting to different temperature conditions. It also acts as a natural insulator, adding to the mattress's temperature control.
- Soft White Fibres. Soft synthetic fillings that add a cosy feel while staying resilient. This layer holds its shape over time, so the comfort shouldn't flatten quickly.
- Eco-polyester. A supportive layer made from 100% recycled materials, and it can be recycled again at the end of its life. A quiet win if sustainability matters to you.
- Pocket Springs. 3750 Cortec Quad Core pocket springs, each encased in its own cloth pocket, which means each spring responds independently to your body. The design prioritises breathability and resilience.
Layer details from mattressonline.co.uk product page, September 2026.
Who's it NOT for?
The medium to firm feel may be a little too solid for lightweight side sleepers, who might not sink in enough to keep their spine aligned. If you want a maintenance-free mattress, look elsewhere: the natural fillings benefit from regular turning. Budget shoppers may also find the £755.00 starting price a stretch.
Harrison Spinks Levisham 3750 Pocket Mattress
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How firm is the Harrison Spinks Levisham 3750?
It's described as medium to firm on the retailer's product page. Owners describe a balanced feel: slightly soft when you first lie down, with firmer underlying support. That suits most back and combination sleepers, although lightweight side sleepers may find it a little too firm.
Does the Levisham 3750 come with a trial period?
Mattress Online lists a 100-night trial with this mattress. That's the retailer's own offer rather than a Harrison Spinks guarantee, so if you buy elsewhere, check that retailer's returns terms before ordering.
What is the Levisham 3750 made of?
The fillings are largely natural: Yorkshire wool, cotton, flax and hemp, plus soft white fibres and an eco-polyester layer made from 100% recycled materials. Support comes from 3750 Cortec Quad Core pocket springs. It's handcrafted in the UK and 24cm deep.
Is the Harrison Spinks Levisham 3750 good for hot sleepers?
It should be. The wool, cotton and hemp layers are naturally breathable and temperature regulating, and the cotton wicks away moisture. The pocket springs are also designed for breathability, so air moves through the mattress rather than heat building up around you.
What sizes does the Levisham 3750 come in?
Five UK sizes: Single, Double, King, Super King and Emperor. Prices run from £755 to £1,979 depending on the size you choose, with the Emperor option handy for anyone wanting a genuinely oversized bed.
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