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INIS 2000 Tencel & Wool Mattress UK - Temperature Adaptive
INIS is a dual-sided ergonomic mattress UK featuring 10-layer core with 2000 pocket springs across 31 cm depth to deliver year-round enhanced sleep quality through reversible seasonal comfort. Summer side combines Tencel fabric and British wool with a double layer of cool Sleep Resonance Foam® for superior cooling, moisture-wicking, and breathability during warm months. Winter side features knit fabric and HD foam for insulating warmth and cosy comfort during cold months.
Climate-intelligent hybrid mattress UK provides targeted pressure relief across 7 body zones whilst ensuring a proper posture support and spinal alignment. Hypoallergenic materials resist allergens naturally. Available in soft, medium firm, firm, and very firm options. British-crafted with CertiPUR certified foams for chemical-free, restorative sleep optimised for every season.
📖 Not sure if a cooling mattress is right for you? Our Ultimate Cooling Mattress Guide UK compares different cooling technologies and helps you choose the perfect mattress for your sleep temperature needs.
👉 Learn more: www.sleepharvester.co.uk/blogs/news/ultimate-cooling-mattress-guide-uk
INIS 2000, a 31 cm deep Pressure Relief Posture Support natural, health ergonomic mattress, is a flawless confluence of eco-friendly Tencel fabric, humidity dissipating dynamic British wool, and a double layer of cool Sleep Resonance Foam® for the Summer Season and a soft, breathable knitted fabric and HD foam for the Winter Season - Buy it with confidence and buy it to enhance your sleep quality.
BUY WITH CONFIDENCE
This perfectly engineered natural health mattress is powered by our proprietary high performance Ergonomic Health Technology® - A great British innovation by the UK's Award-winning mattress ergonomics pioneer Dr Ilyas Ansari.
- Developed in collaboration with British Professor of Sleep Science Professor John Groeger, Nottingham Trent University to perfect this modern sleep sanctuary
- Scientifically shown to enhance sleep quality that ensures you wake up energetic and fresh
- Researched, developed, designed and manufactured in the UK to control every aspect in-house so that we can deliver your coveted mattress for your deep, restorative sleep
- A product of comprehensive independent sleep research and ergonomics research to integrate health and wellbeing benefits
- CertiPUR certified healthcare foams to protect your health, environment and safety
- OEKO-TEX 100 certified natural Tencel and knitted fabrics treated with chemicals free fire retardant materials
- Meets or exceeds British and European Ergonomics Standards for your improved comfort, body support and pressure relief
- Loved and endorsed by elite British Olympians and athletes as part of their rest and recovery regime
- 5-year guarantee for peace of mind - and we will offer you a 10% discount on the existing price of any mattress at that time you want to buy at the end of 5th year
BUY TO ENHANCE YOUR SLEEP QUALITY
Your blissful night’s sleep dictates your freshness, performance and how do you feel the following day. Our combined sleep and ergonomic research further confirmed the previous studies that sleeping on a wrong mattress causes the following problems:
- does not regulate the temperature well enough through the mattress core so it keeps you hot or sweaty in the bed
- makes you toss and turn excessively with motion disturbance as one of the significant factors
- makes you feel sleepy as the day progresses due to inadequate or fragmented sleep
- affects your physical strength as it saps your energy
- gives you body pain (back and shoulder pains and aches)
6 important benefits of this natural health INIS 2000 mattress:
Promotes better temperature and moisture regulation
Engineered to breathe profusely for excellent air circulation through the mattress core and to cool 30x more for efficiently wicking heat and moisture away from your body in real-time for comfortable sleep as cooler body temperature facilitates the most restorative sleep for your complete rest and recovery
Enhances body pressure relief
Innovative comfort ergonomics take care of your painful body pressure points and ensures your natural blood flow. This zenith comfort makes you feel as you are floating on the clouds or water for your restorative sleep.
Provides improved back support and alignment
Ergonomically designed to minimise your body aches and lumbar pain by holding your body in neutral position to provide you with a much needed tailor-made support and keeping your spine in its natural slight curve to maintain head, shoulders, buttocks and heels in alignment
Minimises tossing and turning
Designed to provide comfort through a perfect combination of healthcare comfort core which takes care of your painful body pressure points to make you feel as you are floating on clouds or water. This significantly reduces the tossing and turning which is responsible for uninvited disruption of your soothing sleep.
Reduces disturbances due to partner’s movement
Developed to isolate motion as it absorbs maximum disruption and actively responds to the individual's weight to help you sleep undisturbed
Stops indentation (sagging) and roll-off
Structured to balance the weight sensitivity, shape and size, this wellness mattress allows free movement to enhance its durability and provide you with more comfort and luxury for years to come - hence better sleep.
ERGONOMIC DESIGN
Ergonomics play a pivotal role in making sure that the mattress you sleep on is safe and comfortable whilst providing an ultimate body support for your rejuvenating sleep. Our sleep ergonomics research and ergonomic design of this mattress ensure that you enjoy the safe and correct postures and positions and optimum body pressure relief and support during your sleep (Pressure Relief Posture Support). This allows you to sleep comfortably in the safe mechanical positions to avoid any stress on your joints and muscles. Therefore this helps minimise your body pains, lumbar pain and fibromyalgia for your blissful sleep and refreshing morning to embrace the challenges of a new day.
31 CM DEEP
The thickness of your mattress affects your comfort which influences your sleep quality, health and wellbeing. A thicker mattress (25 cm to 36 cm deep) with a correct combination of pressure relieving layers and anatomical supporting core provides you with luxurious comfort and celestial sleep whereas a thin mattress (13 cm to 23 cm deep) badly affects your sleep and health. This upscale high performance natural mattress is 31 cm thick and is ideal for 98% of the UK population making it suitable for almost every bedroom in the UK.
COMFORT OPTIONS (Soft, Medium Firm, Firm and Very Firm)
Specifically engineered with the options of comfort grades, this beautifully handcrafted mattress is available in soft, medium firm, firm and very firm comfort options so that everyone in the UK can benefit from this mattress and enhance their sleep quality. We have combined our well researched materials to design this mattress so that it offers a perfect firmness (suitable for an individual's preference) for enhancing your comfort level and support regime for your complete rest and recovery.
- Ideal mattress firmness for side, back, stomach and combination sleepers
- Suitable choice for those suffering from lower back pain (lumbar pain)
- Provides comfortable upholstery for sleeping surface
- Helps distribute your weight evenly on a wider area
- Minimises body pressure points for comfort
- Prevents numbness and helps your natural blood circulation
- Sleeper remains in a same sleeping position for a longer period of time for undisturbed sleep
10 SLEEP ENHANCING INNOVATIVE COMFORT AND SUPPORT LAYERS (FROM TOP) WITH BENEFITS
LAYER 1: Luxuriously soft, elegant, natural and Tencel fabric
- Environmental friendly and luxuriously soft and cosy for your blissful comfort in every season
- Hypoallergenic and therefore it is antifungal, antimite, antimolds and it is perfect for sweaty sleepers (antibacterial)
- Highly breathable and odour resistant to keep the mattress fresh
- Perfect for sensitive skin (skin friendly and antistatic), allergy and asthma sufferers
- Wicks moisture and heat away for your cool and comfortable sleep
LAYERS 2 AND 3: Sleep Resonance Foam® with Active Cooling Windows®
This is an innovative medical performance fast rebound healthcare foam proven to enhance breathability through the mattress core and improve sleep quality and comfort. We want to make our medical technology and this healthcare foam (which we use in our medical mattresses) available to the domestic market at the affordable price. This foam improves blood circulation to minimise or prevent pressure ulcers and redistributes body weight over a large contact area whilst providing the targeted spinal and body support including sacral region (lower spine, lumbar and tailbone area).
- 30x more breathable (so it will not heat you up) than a standard foam (it will heat you up) and it is not temperature sensitive like memory foam therefore you will enjoy cool and comfortable sleep in every season
- Eliminates weight sensitivity to prevent pressure ulcers (pressure sores or bedsores)
- Prevents numbness and reduces fatigue so that you do not toss and turn in your bed
- Helps maintain your natural blood circulation for comfort and calm sleep
- Hypoallergenic and therefore prevents the growth of bacteria, fungus, moulds and mites for your clean and hygienic sleep
- Cradles your body prominences (head, shoulders, back, waist, hips, thighs and legs) gently for a consistent spinal alignment and muscles relaxation
- Allows faster and superior relief from stress to your pressure points and joints for minimising or eliminating pains and aches
- Facilitates your complete rest and recovery
LAYER 4: Pure, dynamic British wool
- Keeps you warm in Winter and cool in Summer as it is an excellent temperature regulator
- Highly breathable and therefore lets air pass through efficiently to drive heat out that keeps the mattress cool and comfortable
- Outstanding absorbent as it absorbs up to 30% of its weight in moisture without feeling damp. Therefore it absorbs moisture effectively removes it away from your body for your blissful sleep
- Static resistant to safeguard your skin
- Hypoallergenic and reduces the growth of germs to keep the mattress clean and hygienic
- Environmentally friendly, natural and sustainable and therefore it has low carbon footprints
- Speeds up perspiration absorption process to keep you comfortably cool and dry
LAYER 5: ErgoCore® foam
- Protects your spine from either pulling down or pushing up to prevent discomfort as it provides the right amount of balance to all the segments of your spine
- Keeps your spine in alignment for disturbance free sleep
- Actively supports body to release pressure from all the body pressure points for your comfort
- Facilitates air regulation through the mattress core to expel the warm or hot air out
LAYER 6: ErgoTurn® pocket spring system
- High performance advanced pocket spring system eliminates pressure on the body contact points for outstanding comfort and targeted body support
- Brings head, shoulders, back, waist, hips, thighs and legs in alignment to prevent discomfort for deep nightly sleep
- Isolates partners motion for your unperturbed sleep
- Prevents toss and turn to help you sleep longer in one sleeping position
- Promotes air circulation through the mattress core
LAYERS 7 AND 8: HD foam
Thick breathable layer provides solid but bouncy support to hold the overall weight
LAYERS 9 AND 10: Soft, knitted fabric and Elegant border (side panel)
- Highly porous and breathable for allowing better air circulation to keep the mattress core cool
- Wicks moisture and heat away for cool and comfortable sleep
- More durable and softer
FOUR HANDLES AND TWO AIR VENTS ON BORDER
Make it more breathable and easy to rotate the mattress
DOUBLE SIDED MATTRESS
Turn and rotate to last longer every 4 weeks
COMPLIANCE AND CERTIFICATION
- Complies with the UK FR regulations for domestic use
- OEKO-TEX 100 certified Tencel and knitted fabrics treated with chemicals free fire retardant materials
- CertiPUR certified healthcare foams for protecting your health, environment and safety
MATTRESS CARE
Read our Mattress Care Guide with 5 Years Manufacturer’s Guarantee for details about how to care for your mattress right from the moment you receive it and what voids the mattress guarantee
DIMENSIONS
Single (90 x 190 cm) ●● Small double (120 x 190 cm) ●● Double (135 x 190 cm) ●● King (150 x 200 cm) ●● Super King (180 x 200 cm)
IMPORTANT NOTE
- Mattress border, tape colour, pattern, design and stitches may vary without quality compromise
- Mattress dimensions (length, width and height) are approximate so allow a tolerance of up to 3 cm
- This mattress is available in various comfort options (soft, medium firm, firm and very firm). Please choose your correct comfort option before placing the order.
- Mattress composition and the layers sequencing may change depending on the comfort option required
- This mattress is suitable for people up to 95 kg weight. Please explore our IVORY COLLECTION which is exclusively designed and developed for big build, overweight or heavy people (over 95 kg)
BASED ON BODY TYPE AND SLEEPING POSITION
IDEAL FOR
- All the sleeping positions (back, side and stomach)
- Individual and couples with flat body shape and even weight distribution
- Individual and couples with average body shape and even weight distribution
- Individual and couples with curvy body shape and uneven body weight distribution (having more pronounced hips, stomachs and shoulders)
- People up to 95 kg weight - please explore our IVORY COLLECTION which is exclusively designed and developed for big build, overweight or heavy people (over 95 kg)
BASED ON HEALTH CONDITION AND OTHER ISSUES (HEALTH AND WELLBEING BENEFITS)
EXCELLENT FOR
- Everyone who is looking to improve their sleep quality and comfort
- Hot sleepers as this mattress is 30x cooler and breathable and it efficiently takes heat and moisture away from body for comfortably cool sleep
- Asthma sufferers and skin allergy sufferers as this mattress is hypoallergenic
- People who spend more time in bed due to immobility and illness
- People who suffer from bedsores or pressure ulcers as it relieves pressure from the body for comfortable stay in the bed
- People who suffer from lumbar pain (lower back pain) or body ache as this mattress provides a complete spinal and body support
A Great British Award-winning Innovation for Sleep Health
Our Medical Innovation for Sleep, Sports and Health
What is Ergonomic Health Technology® and how it benefits you?

Exclusively researched, developed and designed in the UK
At the core of each upscale mattress is our medically advanced, high performance Ergonomic Health Technology®. This is the operating system of our body adaptive ergonomic mattresses. This cutting-edge innovative technology has proven to enhance sleep quality whilst relieving body pressure for outstanding comfort, providing total body support for perfect spinal alignment, and preventing pressure ulcers (pressure sores or bedsores). Furthermore, the built-in micro Active Cooling Windows® with large surface area function as the miniature air conditioners to abundantly channelize air through the mattress core for cool and comfortable sleep. Ergonomic Health Technology® is an integral component of our mind and body rejuvenating Sports Recovery Foam®, Sleep Resonance Foam®, Airpulse medical memory®, and other upscale comfort cores. These health and wellbeing benefitting healthcare foams and comfort core are hypoallergenic and are designed to keep you comfortably cool and dry during your recuperating sleep.
Medical Benefits of Ergonomic Health Technology®
- Improves sleep, comfort and body support
- Facilitates smooth blood circulation to prevent pressure ulcers
- Eases body pains and aches whilst helping to manage back pain
- Keeps sleeping surface cool, comfortable and dry for blissful sleep
- Relieves pressure from head, shoulders, arms, waist, hips, thighs and legs (7 body pressure points zones) for relaxing comfort
- Keeps spine in its natural “S” shape to prevent discomfort
- Prevents tossing and turning for peaceful night’s sleep
- Eliminates motion transfer for disturbance free sleep
- Manages moisture dispersions efficiently for hygienic sleep
WHAT MAKES THE INIS 2000 DIFFERENT FROM OTHER TEMPERATURE ADAPTIVE MATTRESSES?
INIS 2000 features a unique dual-sided seasonal design with 10 precision-engineered layers and 2000 ErgoTurn® pocket springs across 31 cm depth. The summer side combines Tencel and British wool for cooling, moisture-wicking comfort during warm months, whilst the winter side features knit fabric and HD foam for insulating warmth during cold months. Simply flip your mattress seasonally for year-round optimal sleep climate without needing multiple mattresses.
WHO IS THE INIS 2000 DESIGNED FOR?
INIS 2000 is designed for people who experience temperature fluctuations throughout the year, couples with different temperature preferences, those seeking natural materials, and anyone wanting customisable comfort. Available in soft, medium firm, firm, and very firm options, it suits all sleeping positions - side, back, stomach, and combination sleepers - with ergonomic support and pressure relief.
HOW DOES THE DUAL-SIDED SEASONAL DESIGN WORK?
The INIS 2000 features two distinct sleeping surfaces optimized for different seasons. The summer side uses Tencel fabric and British wool that naturally wick moisture and dissipate heat for cool, dry sleep during warm months. The winter side features knit fabric and high-density foam that provide insulation and warmth retention for cosy comfort during cold months. Simply flip the mattress when seasons change for optimal temperature control.
WILL THIS MATTRESS HELP WITH BACK PAIN AND SPINAL ALIGNMENT?
Yes, INIS 2000 features ergonomic design with 2000 ErgoTurn® pocket springs that work independently to contour your body's natural curves and maintain proper spinal alignment regardless of which side you're sleeping on. The 10-layer construction provides targeted pressure relief across 7 body zones, whilst multiple firmness options (soft, medium firm, firm, very firm) allow you to select appropriate support for your specific back pain needs.
HOW DO I CHOOSE THE RIGHT FIRMNESS LEVEL FOR THE INIS 2000?
INIS 2000 is available in soft, medium firm, firm, and very firm options that remain consistent on both seasonal sides. Soft suits lightweight side sleepers seeking plush comfort, medium firm works for combination sleepers and average weight individuals, firm is ideal for back sleepers and heavier individuals, and very firm provides maximum support for stomach sleepers or those with specific back conditions requiring therapeutic firmness.
WILL I FEEL MY PARTNER MOVING DURING THE NIGHT?
No, the ErgoTurn® pocket spring system with 2000 individual springs minimises motion transfer effectively on both sides of the mattress. Each spring works independently to absorb movement, whilst the 10-layer construction including foam and natural fibre layers, helps dampen motion for disturbance-free sleep even when your partner moves or changes position throughout the night.
HOW DOES THE WINTER SIDE KEEP ME WARM?
The winter side features knit fabric and high-density (HD) foam specifically engineered for warmth retention. Knit fabric provides a soft, insulating layer that traps body heat whilst remaining breathable, and HD foam offers superior heat retention properties compared to standard foams. This combination creates a cosy, warm sleep environment during cold winter months whilst maintaining proper support and pressure relief.
WHAT IS TENCEL, AND HOW DOES IT KEEP ME COOL IN SUMMER?
Tencel is a premium natural fibre sustainably derived from eucalyptus wood pulp. It is exceptionally breathable with superior moisture-wicking properties that absorb perspiration and transport it away from your skin efficiently. Tencel's smooth fibres allow excellent air circulation, keeping the mattress surface cool and dry during hot summer nights. Combined with British wool on the summer side, this creates powerful natural cooling without synthetic chemicals.
HOW DOES THE 10-LAYER CONSTRUCTION IMPROVE SLEEP QUALITY?
The 10 precision-engineered layers work synergistically to optimise sleep quality through multiple mechanisms. These layers include seasonal comfort fabrics, natural fibres for temperature regulation, comfort foam layers for pressure relief, 2000 ErgoTurn® pocket springs for responsive support, and base layers for durability. This architecture reduces tossing and turning, promotes deeper REM sleep, and ensures you wake feeling rested and rejuvenated regardless of season.
WHEN SHOULD I FLIP MY INIS 2000 MATTRESS BETWEEN SIDES?
Flip to the summer side (Tencel and wool) when temperatures rise, typically in late spring or early summer when you notice yourself feeling too warm at night. Flip to the winter side (knit fabric and HD foam) when temperatures drop, typically in late autumn or early winter when you need extra warmth. You can also flip based on personal comfort preferences rather than strict seasonal schedules.
ARE THE MATERIALS IN THE INIS 2000 SAFE AND ECO-FRIENDLY?
Yes, INIS 2000 uses sustainably sourced Tencel from renewable eucalyptus forests, British wool that is biodegradable and renewable, and CertiPUR certified foams that are low in VOC emissions and free from harmful chemicals like ozone depletors, heavy metals, formaldehyde, and phthalates. Both seasonal sides are designed with environmental responsibility in mind for conscious consumers.
WHAT IS SLEEP RESONANCE FOAM, AND HOW DOES IT WORK?
Sleep Resonance Foam® is our advanced breathable foam technology that is 30x more breathable than standard memory foam. It features Active Cooling Windows® that act as miniature air conditioners, expelling warm air whilst streaming in fresh ambient air. This innovative foam provides pressure relief and body contouring whilst maintaining optimal temperature regulation for comfortable, undisturbed sleep.
IS INIS 2000 SUITABLE FOR PEOPLE WITH ALLERGIES?
Yes, INIS 2000 is naturally hypoallergenic on both sides. Tencel fibres are inherently antibacterial and resist bacterial growth, whilst British wool naturally resists dust mites, mould, and allergens without chemical treatments. The knit fabric and HD foam on the winter side are also hypoallergenic. This makes the mattress ideal for asthma sufferers and those with sensitivities to synthetic materials year-round.
WHERE IS THE INIS 2000 MANUFACTURED?
INIS 2000 is handmade and manufactured in-house in the UK. This allows complete control over material selection, quality control, and craftsmanship to ensure you receive a premium dual-sided mattress that delivers optimal sleep comfort year-round whilst supporting British manufacturing and reducing environmental impact from international transportation.
WHAT WARRANTY DOES THE INIS 2000 COME WITH?
INIS 2000 comes with a 5-year guarantee, demonstrating our confidence in the quality, durability, and craftsmanship of this premium British-made temperature-adaptive mattress. This warranty covers manufacturing defects on both seasonal sides and ensures your investment in year-round comfort is protected.
HOW DO I CARE FOR MY INIS 2000 BAMBOO MATTRESS?
Flip your INIS 2000 between summer and winter sides seasonally based on temperature needs. When not changing seasons, rotate the mattress head-to-foot regularly to ensure even wear (see our mattress care guide). Use a breathable mattress protector appropriate for the season. The natural fibres are resistant to odours and bacteria, requiring minimal maintenance for long-lasting freshness and optimal seasonal performance.