Mammoth Performance Pure Mattress
Use promo code "WELCOME5" for extra discount
VAT Relief on Mammoth Mattresses
You can purchase a Mammoth Mattresses VAT-free if you have a chronic illness, disability, or terminal illness and the mattress is for personal use. Eligible conditions: arthritis, diabetes, heart disease, asthma, copd, hiatus hernia, lupus, angina, parkinsons, fibromyalgia, ms, me, terminal illness and mental impairments affecting daily life. To claim, contact us and we will supply a declaration of eligibility form.
Features
- Vat Free..  As of 01.07.2026 all mammoth mattress purchases are available vat Free to those who qualify as Mammoth have been granted a vat free product certification
- Medical Grade™ Foam (60mm) – Healthcare-inspired foam that provides instant comfort, superior pressure relief, and postural support for all sleeping positions.
- Skyfoam Layer (65mm) – Adds an extra soft, cushioned feel for enhanced comfort, ideal for side sleepers or those who prefer a softer mattress.
- PostureCell® Technology – Targeted support for key areas of the body to maintain spinal alignment and relieve pressure points.
- Micro-Fresh Anti-Microbial Cover Treatment – Protects against bacteria, allergens, and odours, ensuring a cleaner and more hygienic sleep environment.
- Hypoallergenic Cover – Breathable and safe for sensitive skin, adding extra hygiene and comfort.
- Depth: 27cm – The perfect combination of support layers and comfort, creating a balanced medium to soft feel.
- Comfort Feel: Medium to Soft – Designed for cushioned, gentle support while maintaining spinal alignment.
- 10-Year Guarantee – Built to last with durable materials, providing peace of mind.
The Performance Pure Mattress from Mammoth is engineered for sleepers who prefer a firmer, more supportive surface without sacrificing comfort. At its core is 60mm of Mammoth Medical Grade™ foam, a healthcare-inspired material developed in the UK and derived from technologies used in medical beds. This advanced foam provides instant pressure relief, enhanced postural support and proper spinal alignment, adapting immediately to your body in any sleeping position. Unlike conventional memory foams, Medical Grade™ foam works without heat, giving you instant comfort from the moment you lie down.
The mattress also incorporates PostureCell® technology, designed to provide targeted support to key areas of the body. This technology helps distribute weight evenly, relieves pressure points, and promotes better circulation for a more restorative night’s sleep. Encased in a Micro-Fresh anti-microbial cover, the Performance Pure Mattress naturally protects against bacteria, allergens, and odours, while the hypoallergenic and breathable design ensures a clean, hygienic sleep environment.
With a total depth of 27cm and a firmer feel, this mattress offers the perfect balance of comfort and support for back sleepers, combination sleepers, or anyone who prefers a firm surface for better spinal alignment. Built to last, the Performance Pure Mattress comes with a 10-year guarantee, reflecting the premium materials and construction used throughout.
Combining Medical Grade™ foam, PostureCell® technology, and Micro-Fresh cover, the Performance Pure Mattress delivers a scientifically-backed sleep solution designed to improve sleep quality, relieve discomfort, and help you wake up refreshed, energised, and ready for the day.
Frequently Asked QuestionsÂ
What makes the Performance Pure Mattress different from other mattresses?
The Performance Pure Mattress combines 60mm Medical Grade™ foam with PostureCell® technology to provide firm support, spinal alignment, and pressure relief.
Is the mattress suitable for back sleepers?
Yes. Its firmer feel provides extra support, helping to maintain proper spinal alignment while you sleep.
How thick is the Performance Pure Mattress?
The mattress has a total depth of 27cm, combining comfort layers and supportive construction for durable, restorative sleep.
Does it have any allergy protection?
Yes. The mattress comes with a Micro-Fresh anti-microbial and hypoallergenic cover, protecting against bacteria, odours, and allergens.
What guarantee does it come with?
The Performance Pure Mattress includes a 10 year guarantee for peace of mind and long-lasting quality.
Single (90cm): 190 × 90 × 27 cm
Double (135cm): 190 × 135 × 27 cm
King Size (150cm): 200 × 150 × 27 cm
Super King Size (180cm): 200 × 180 × 27 cm
Features
- Vat Free..  As of 01.07.2026 all mammoth mattress purchases are available vat Free to those who qualify as Mammoth have been granted a vat free product certification
- Medical Grade™ Foam (60mm) – Healthcare-inspired foam that provides instant comfort, superior pressure relief, and postural support for all sleeping positions.
- Skyfoam Layer (65mm) – Adds an extra soft, cushioned feel for enhanced comfort, ideal for side sleepers or those who prefer a softer mattress.
- PostureCell® Technology – Targeted support for key areas of the body to maintain spinal alignment and relieve pressure points.
- Micro-Fresh Anti-Microbial Cover Treatment – Protects against bacteria, allergens, and odours, ensuring a cleaner and more hygienic sleep environment.
- Hypoallergenic Cover – Breathable and safe for sensitive skin, adding extra hygiene and comfort.
- Depth: 27cm – The perfect combination of support layers and comfort, creating a balanced medium to soft feel.
- Comfort Feel: Medium to Soft – Designed for cushioned, gentle support while maintaining spinal alignment.
- 10-Year Guarantee – Built to last with durable materials, providing peace of mind.
The Performance Pure Mattress from Mammoth is engineered for sleepers who prefer a firmer, more supportive surface without sacrificing comfort. At its core is 60mm of Mammoth Medical Grade™ foam, a healthcare-inspired material developed in the UK and derived from technologies used in medical beds. This advanced foam provides instant pressure relief, enhanced postural support and proper spinal alignment, adapting immediately to your body in any sleeping position. Unlike conventional memory foams, Medical Grade™ foam works without heat, giving you instant comfort from the moment you lie down.
The mattress also incorporates PostureCell® technology, designed to provide targeted support to key areas of the body. This technology helps distribute weight evenly, relieves pressure points, and promotes better circulation for a more restorative night’s sleep. Encased in a Micro-Fresh anti-microbial cover, the Performance Pure Mattress naturally protects against bacteria, allergens, and odours, while the hypoallergenic and breathable design ensures a clean, hygienic sleep environment.
With a total depth of 27cm and a firmer feel, this mattress offers the perfect balance of comfort and support for back sleepers, combination sleepers, or anyone who prefers a firm surface for better spinal alignment. Built to last, the Performance Pure Mattress comes with a 10-year guarantee, reflecting the premium materials and construction used throughout.
Combining Medical Grade™ foam, PostureCell® technology, and Micro-Fresh cover, the Performance Pure Mattress delivers a scientifically-backed sleep solution designed to improve sleep quality, relieve discomfort, and help you wake up refreshed, energised, and ready for the day.
Frequently Asked QuestionsÂ
What makes the Performance Pure Mattress different from other mattresses?
The Performance Pure Mattress combines 60mm Medical Grade™ foam with PostureCell® technology to provide firm support, spinal alignment, and pressure relief.
Is the mattress suitable for back sleepers?
Yes. Its firmer feel provides extra support, helping to maintain proper spinal alignment while you sleep.
How thick is the Performance Pure Mattress?
The mattress has a total depth of 27cm, combining comfort layers and supportive construction for durable, restorative sleep.
Does it have any allergy protection?
Yes. The mattress comes with a Micro-Fresh anti-microbial and hypoallergenic cover, protecting against bacteria, odours, and allergens.
What guarantee does it come with?
The Performance Pure Mattress includes a 10 year guarantee for peace of mind and long-lasting quality.
Single (90cm): 190 × 90 × 27 cm
Double (135cm): 190 × 135 × 27 cm
King Size (150cm): 200 × 150 × 27 cm
Super King Size (180cm): 200 × 180 × 27 cm
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