Dartmouth Natural Mattress

£1,359.00£2,928.00 inc. VAT

Dartmouth Natural Mattress

(5 customer reviews)

£1,359.00£2,928.00 inc. VAT

Pure craftsmanship, with a 10-year manufacturing guarantee, this gold standard chemical free luxury mattress comes at a brilliant price.

Don’t forget your chemical free pillows too!



Most sizes in stock and ready for priority despatch.Call now to discuss delivery.

The Dartmouth Natural Mattress

One of the most sumptuous mattresses available at this price-level, The Dartmouth promises a refreshing chemical free sleep experience, for year after year after year. If you are looking for supreme comfort created from deep, natural fillings, this is the one for you. By creating a hypoallergenic and chemical free environment that is 99.9% dust mite free, our mattresses are an ideal choice for asthmatics and allergy sufferers too.

Handmade to order by our mattress specialists who have had years of training from one of the top mattress manufacturers in the UK with care and attention. And the quality shows!

A good night’s sleep so important. Wool has been proven to boost the amount of deep, regenerative sleep you get, helping you to wake feeling refreshed. As with the other mattresses in our Dartmoor range, our wool is sourced from our own farm on Dartmoor near Okehampton, washed naturally in Launceston, Cornwall & hand teased into luxurious layers in all of our beds. We even add a handful of dried lavender, to sooth and enhance sleep by giving a faint lavender scent when jumping into bed. The Dartmouth mattress come with a generous handful of dried lavender teased into the wool.

  • Three rows of traditional hand stitched sides creating a 26cm luxury border
  • Cottonsafe® cover with embroidered logo
  • Medium or Firm support feel with up a luxury 1500 Active Support Technology® spring count
  • Completely turnable  for comfort and durability
  • With eight air vents and four carrying handles
  • No fire retardant chemicals, no adhesives
  • Unlike all other mattresses, we comply with the Stockholm Convention on recycling and each mattress is clearly labelled as such
  • 10 year manufacturing guarantee
  • Delivery: 7-8 weeks (Some items in stock for speedy pre-Christmas delivery. Phone to check availability on 01395 239832)
  • It may be possible to make a bespoke Dartmouth mattress to your own specification i.e. unusual size or 4 poster beds with corner cut outs. Ring for a quote on 01395 239830.

Our Cottonsafe® Cover

All wool mattresses can have an itchy or prickly cover fabric. We prefer the soft feel of organic cotton. So, whilst our Cottonsafe® fabric uses pure wool in its blend, it has the distinct advantages of the softer organic cotton, producing a much more comfortable sleep surface.

The Cottonsafe® fabric cover is completely unique and naturally fire retardant with NO ADD ON TREATMENTS such as FIRE RETARDANT COATING OR CHEMICALS. Why should you be concerned about fire retardant chemicals in mattresses? Click here for more information

We have a method patent pending on our technology. Our unique Cottonsafe® fabric using organic cotton and wool means no fire-retardant chemicals are necessary to meet the strict UK fire safety standards.  Academic research has proved that Cottonsafe® is the safest mattress on the market – see here.

Cottonsafe® is a blend of organic cotton with natural wool with built in fire barriers. Click here to find out more about Cottonsafe®.

The Dartmouth Cottonsafe® cover is finished with eight air vents and four carrying handles.

Dartmouth Fillings

We use no chemicals, adhesives or glues within the Dartmouth mattress. Wool has the ability to wick away moisture, and great temperature regulating properties, keeping you warm in winter and cooler in summer.

Within the body of the mattress our Dartmoor wool is hand teased. Hand teasing is a labour-intensive process and is a method of separating the fibres of the natural fillings used in the layers of the mattress by hand. It is necessary to tease the natural fibres of our Dartmoor wool when used carefully by hand, working through the strands to remove any impurities in order to achieve an even layer of soft and natural aeriated filling.

For extra springiness we use a layer of hand-teased horse hair. It has been a staple ingredient of traditional mattresses for decades and adds unique properties increasing breathability and ventilation to the wool. The individual hairs never squash into a permanent shape, so this gives the mattress fillings added “spring”. If, however, you would prefer no horsehair simply ask – we will add more wool instead.

Because we use natural and organic materials such as wool and silk, with little or no treatment to keep them as natural as possible, there may be an initial aroma of lanolin. This will dissipate with use. Also due to the thick layers we use, a degree of settlement will naturally occur over time.  This process may be accelerated by constant pressure or lying in a certain area leaving a slight hollow.  This is quite natural; over time this will smooth out when the fillings settle evenly. The Dartmouth should be rotated 180 degrees and turned over, once a month, to help even out wear.

Dartmouth Springs

We use an award-winning Active Support Technology® 1500 spring count in the centre of our completely turnable mattress. The active pocket spring coils are nested together in a honeycomb structure.  This allows us to increase the spring count from 1200 to 15000 springs further boosting the amount of support and luxurious comfort.

The pocket springs are in their own individual pockets which allows the mattress to adjust and respond to your body weight. Click here to find out more about our springs.

The Dartmouth mattress is available in medium and firm tension.

Dartmouth Mattress Construction

Unlike the majority of mattress manufacturers’ we use no chemicals, glues or adhesives in the construction of our mattresses. Instead, we use the talent of traditional mattress craftsmen and stitch the mattress fillings in place using flax.

The three rows of hand stitching are not just for beautification. These stitches go right into the core of the mattress – three springs in – to ensure the mattress has edge to edge support. It is then hand tufted with premium wool tufts. Click here to find out more about side stitching.

And finally, the crafted mattress is hand tufted. Hand tufting is the process which secures all the fillings and the spring unit together through the depth of the mattress. Once the body of the mattress has been assembled the mattress is put into the mattress press. Long tufting needles are then driven through the mattress by hand, inserting cotton poppins, which are then secured either side with wool felt tufts.

Tufting is the best method of ensuring the spring units and mattress layers remain in position and is necessary to prolong the durability of the mattress.

Each Dartmouth Mattress has eight vents for air-flow and four handles for ease of movement. Unlike many other types of mattresses, it is a completely turnable which will extend its life and even out wear. All our mattresses should be rotated 180 degrees and turned over, once a month, to help even out wear. It is topped off with our beautifully embroidered Cottonsafe® logo.

Pure, Natural and Safe – Cottonsafe®

Dartmouth Mattress Filling

  • Cottonsafe® Outer Fabric
  • Layered British Wool
  • Hand Teased Dartmoor Wool (with dried Lavender)
  • Bonded Cotton
  • Horse Hair
  • Spring Insulator
  • 1500 Pocket Spring Unit
  • Spring Insulator
  • Horse Hair
  • Bonded Cotton
  • Hand Teased Dartmoor Wool (with dried Lavender)
  • Layered British Wool
  • Cottonsafe® Outer Fabric


Additional Information


Small Single size (2’6): 76 x 190 x 27 cm
Single size (3’): 90 x 190 x 27 cm
Small Double size (4′): 120 x 190 x 27 cm
Double size (4’6”): 135 x 190 x 27 cm
King size (5’): 150 x 200 x 27 cm
Super King size (6′): 180 x 200 x 27 cm

We also offer both King and Super King zip and link mattresses which are made from either two 2’6 or two 3′ mattresses with a choice of both medium, both firm or one of each spring.

Delivery details

Our bed mattresses are delivered by a two man team. For full delivery information, see the Delivery page.

5 reviews for Dartmouth Natural Mattress

  1. R. Robertson

    We ordered the Dartmouth mattress after looking at various eco and fire retardant free options online. We settled on cottonsafe natural mattresses as being the bets option, as the most eco friendly and made without nasty toxic chemicals like fire retardants.

    My husband and I have both found the mattress to be really comfortable, having many good quality nights sleep. We haven’t noticed any lanolin smell that some report.

    The customer service has been brilliant and they’ve patiently answered all of my many questions regarding the materials used etc.

    I would definitely recommend them and hope to be buying more mattresses from them in the near future. I would love to see them expand with more conventional style sofa options too, hopefully that’ll come with time.

  2. Mr & Mrs McNaughtan

    Some years back, (seemingly) like many couples, we were talked into buying a firmer mattress than was actually required. After an extensive search for a replacement, we were recommended to Cottonsafe by a Devon based family member, who told us he just ‘couldn’t wait to get to bed at night’. We were intrigued by such a high endorsement, and took the trouble to drive down from South West London to visit your showroom in Devon. We met with Mark who was extremely helpful and knowledgeable. After talking us through the different options, we decided that a medium Dartmouth was adequate for our needs. We also chose to order a Luxury Topper but frankly this was an unnecessary purchase as the Dartmouth is supremely comfortable as is. The Topper has gone straight to the guest bedroom where it has also been receiving rave reviews. It’s always nice to come across quality, ethical products from an independent local business.

  3. M. Moseley-Brown

    Excellent service and wonderful products. There are so many mattresses out there that are detrimental to our health. Cotton safe have done an amazing amount of research to make sure that we can have a good, safe night’s sleep. There are no nasty chemicals to breathe in and the comfort is next to none. All my family now sleep on their products. I could not consciously pass on my old (expensive) mattresses as I now know them to be potentially dangerous products because they had fire retardants in them. I keep telling all of my friends to contact Cotton Safe as soon as possible. My husband says that “It is like sleeping on a flock of sheep – wonderful!!” This company should be your number one choice for a comfortable, safe mattress.

    We are now saving up for the sofa and armchairs!

  4. T. Wood

    The mattress is the most comfortable mattress we have ever had and without the issues associated with the big name memory foam brands. No more sore arms, backs or hips. You really notice the difference when you sleep in another bed! It’s definitely been a worthwhile investment.

  5. A. Christie-Miller

    The Cottonsafe® mattress you sent us is absolutely wonderful. We loved the smell of it when it arrived (it had a kind of farm smell- but in a good way!), and it is amazingly comfortable. It’s also been great for my wife’s allergies. We both sleep so well on it and it somehow makes our new home feel more homely!

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