Passer aux informations produits
1 de 3

Équilibre plus profond — trois couches en latex conçues pour les dormeurs combinés qui en veulent plus

Naturaliste Altum — Fermeté moyenne

Naturaliste Altum — Fermeté moyenne

L'Altum Medium Firm est conçu pour les dormeurs combinés qui souhaitent l'équilibre de la gamme Aura mais avec un profil de confort plus profond. Trois couches de latex naturel créent une sensation plus amortie tandis que la couche supérieure plus ferme maintient un soutien structuré.

Comme toutes les configurations Aura et Altum, les couches sont réversibles — la couche supérieure plus ferme crée une sensation moyenne ; réarrangez-les pour une configuration plus douce.

• Trois couches de latex — profil plus profond que l'Aura Medium Firm
• Conçu pour les dormeurs combinés qui veulent un amorti avec de la structure
• La couche supérieure plus ferme aide à maintenir le soutien de la colonne vertébrale dans toutes les positions de sommeil
• Réversible — reconfigurez entre Medium Firm et Soft à la maison

Choisissez votre taille :
Prix habituel €1.323,00 EUR
Prix habituel Prix soldé €1.323,00 EUR
Vente Épuisé
Taxes incluses. Frais d'expédition calculés à l'étape de paiement.
90-Night Risk-Free Trial
10-Year Warranty
Free EU Delivery — No Hidden Costs
Certified Natural Materials — No Foam, No Chemicals
Designed and manufactured in Europe
Afficher tous les détails

Is this medium latex mattress right for your sleep style and body type?

Designed for sleepers who want balanced comfort with deeper cushioning and stable support across different sleeping positions.

 Combination sleepers

 Combination sleepers

Adapts easily as you change positions during the night, maintaining comfort and support whether you sleep on your side, back, or a mix of both.

Back sleepers

Back sleepers

Provides stable support to help keep the spine aligned, while the additional latex layer adds gentle cushioning for a more relaxed feel.

Medium weight sleepers

Medium weight sleepers

Une fermeté équilibrée empêche un enfoncement excessif tandis que la construction en latex plus profonde s'adapte en douceur aux courbes naturelles du corps.

Sleepers who prefer a balanced feel

Sleepers who prefer a balanced feel

A perfect middle ground between soft comfort and firm support - with a slightly deeper, more cushioned feel than a standard medium mattress.

If your mattress lacks balance, your sleep can suffer

The Full Latex Plus construction adapts to your body with a deeper, more responsive comfort profile - helping reduce pressure, improve alignment, and support uninterrupted sleep.

Poor spinal alignment

Poor spinal alignment

Sans le bon équilibre entre soutien et confort, la colonne vertébrale peut se désaligner pendant le sommeil. Une structure en latex multicouche répartit le poids de manière plus uniforme, aidant à maintenir une posture naturelle et saine.

Pressure without proper support

Pressure without proper support

Too much firmness can create pressure points, while too little support can cause sinking. A balanced latex construction relieves pressure while still supporting the body evenly.

Restless sleep

Restless sleep

Constant tossing and turning can be a sign of discomfort. A deeper, more adaptive surface reduces micro-adjustments, helping your body settle into more stable, uninterrupted sleep.

Overheating

Overheating

Natural latex is breathable and does not trap heat like synthetic foams. Its open-cell structure allows airflow, helping maintain a comfortable sleep temperature throughout the night.

Dormez plus près de la nature

Create a calm and balanced sleep environment inspired by natural materials.

Inside the Naturalist Full Latex Plus Medium Mattress

Soutien ferme en haut, avec un rembourrage plus profond travaillant par en dessous.

1

Organic cotton and wool cover

Breathable natural fabric that regulates temperature, manages moisture, and creates a clean, comfortable sleep surface.

2

 7-zone firm natural latex comfort layer

A firmer latex layer placed on top to provide immediate support and maintain proper spinal alignment across the body.

3

Additional soft natural latex layer

A softer latex layer beneath adds deeper cushioning, allowing the body to relax while preventing pressure build-up.

4

Soft natural latex base layer

Une seconde couche de latex souple agit de dessous pour améliorer la profondeur de confort, créant une sensation plus équilibrée et adaptative sans perdre de soutien.

Natural materials that support healthier sleep

The Naturalist Mattress is made using certified natural materials selected for breathability, durability and comfort.

Natural Dunlop Latex

Natural latex provides responsive pressure relief and adapts to the body's natural curves.

Organic Cotton and Wool

Les fibres naturelles respirantes aident à réguler la température et à gérer l'humidité.

Breathable natural structure

Natural materials allow air to circulate through the mattress and help reduce heat build-up during sleep.

Materials & construction

Explorez les matériaux et la structure à l'intérieur de votre matelas.

Certifications

GOLS certified latex

GOLS certified latex

Ensures the latex is made from certified organic raw materials and meets strict environmental and social standards.

GOTS certified textiles

GOTS certified textiles

Couvre le coton et la laine biologiques, garantissant une production responsable, un traitement sûr et une traçabilité.

Dunlop latex

Dunlop latex is a natural material made from the sap of rubber trees, processed using a traditional molding and vulcanization method.

During production, the latex is poured into a mold and gently settles, creating a slightly denser and more stable structure. This results in a more supportive and durable material compared to other latex types.

It has a naturally elastic feel, allowing it to respond to body movement while maintaining consistent support throughout the night.

Latex firmness

Soft latex (~65 kg/m³)
Provides higher elasticity and contouring, allowing the body to sink slightly into the surface. Helps reduce pressure on shoulders and hips.

Firm latex (~85 kg/m³)
Offers greater resistance and stability, supporting the body more firmly and helping maintain proper spinal alignment.

7-zone latex

7-zone latex

Zone structure scheme

Pocket springs

Zoned support
• 7-zone support structure
• Softer zones at shoulders and hips — pressure relief
• Firmer lumbar zone — prevents excessive sinking
• Balanced zones — maintain overall stability

Technical specifications
• Barrel-shaped springs
• ~462 springs (90×200 cm)
• ~396 springs (80×200 cm)
• 14 × 33 / 12 × 33 layout (high-density)
• Dual-gauge steel (1.6 mm / 1.8 mm)

Construction & airflow
• Side-connected structure for stability
• Open design improves airflow and moisture control

Natural materials

Matériaux de couverture
• Mélange de coton et de laine
• Certifié GOTS (niveau fournisseur)
• Naturellement respirant et régulateur d'humidité

Noyau en latex
• Latex naturel Dunlop
• Certifié GOLS (niveau fournisseur)
• Durable, élastique et soutenant

Couches naturelles supplémentaires
• Fibre de coco — utilisée dans les modèles hybrides pour une structure supplémentaire
• Crin de cheval — utilisé dans des modèles sélectionnés pour un meilleur flux d'air et contrôle de l'humidité

Naturalist firmness configurations

Ce matelas est actuellement configuré en Doux.

Doux

Soulagement de pression plus doux avec une compression plus profonde sous charge.

Cette configuration permet au corps de s'enfoncer plus facilement et crée une sensation plus douce et plus adaptative.

En savoir plus

Medium

Current configuration

A balanced feel created by placing the firmer latex layer on top and the softer layer underneath.

This setup provides more stable support with a subtle underlying softness.

Firm

Higher resistance with reduced compression.

This setup increases structural support and limits surface deformation.

Learn more

Dual Comfort

Différents niveaux de fermeté de chaque côté du matelas.

Chaque côté fonctionne indépendamment au sein de la même structure.

Learn more

Trois options de confort dans un matelas

By rearranging the order of the latex layers, you can adjust the feel from Medium to Medium Soft to Soft - all in one mattress.

Adjust comfort by rearranging the latex layers

Le matelas Full Latex Plus est composé de trois couches de latex interchangeables qui peuvent être facilement réarrangées à domicile.

Dans sa configuration par défaut, la couche de latex la plus ferme est en haut, créant une sensation équilibrée de fermeté moyenne avec un soutien stable et un confort contrôlé.

Échangez la couche supérieure contre une plus douce, et le matelas devient plus adaptatif et soulageant la pression — passant à une sensation Moyenne Douce.

Placez les couches les plus douces en haut, et le matelas se transforme en une version Douce plus profonde et plus enveloppante.

Cela vous offre trois options de confort distinctes dans un seul matelas, vous permettant de l'ajuster au fil du temps sans avoir besoin de le remplacer.

More usable space, without compromise

Dormez, bougez et utilisez votre lit librement — avec un soutien qui reste constant sur toute la surface.

Sleep all the way to the edge

Sleep all the way to the edge

No need to avoid the sides. The mattress feels just as supportive at the edge as it does in the center.

Plus d'espace lors du partage du lit

Plus d'espace lors du partage du lit

Un soutien stable aide à réduire le roulis vers le milieu. Les deux dormeurs peuvent utiliser confortablement toute leur moitié du matelas.

Low profile that fits your space

Low profile that fits your space

The slimmer design takes up less visual and physical space. Ideal for smaller rooms, minimalist setups, or lower bed frames.

Material & Construction Details

Top layer: Firm latex (~85 kg/m³)

Function: structural support

Bottom layer: Soft latex (~70 kg/m³)

Function: pressure relief

Configuration: reversible (Medium ↔ Soft)

Manufacturing method: variable pinhole pattern

Zoning principle:
Smaller perforations → higher density → higher resistance
Larger perforations → lower density → lower resistance

Zone distribution:
Head / Neck → medium resistance
Shoulders → lower resistance
Upper back → medium resistance
Lumbar → higher resistance
Pelvic → controlled resistance
Knee → transition zone
Lower legs / feet → lower resistance

Zone transition: continuous (non-stepped)

Cover: cotton / wool
Certification: GOTS-certified (supplier level)

Latex: natural Dunlop latex
Certification: GOLS-certified (supplier level)

Coconut fibre: used in hybrid models

Horsehair: used in selected models

Natural temperature regulation

Des matériaux naturels respirants aident à maintenir une température de sommeil confortable tout au long de la nuit.

Heat doesn’t build up

Heat doesn’t build up

Air moves freely through the mattress instead of being trapped around your body, helping you maintain a more comfortable sleep temperature.

Less humidity during the night

Less humidity during the night

Les fibres naturelles absorbent et libèrent l'humidité, réduisant cette sensation de chaleur et d'humidité, et maintenant votre surface de sommeil plus équilibrée.

Toujours frais et respirant

Toujours frais et respirant

La structure interne permet un flux d'air continu, de sorte que le matelas reste léger, aéré et confortable tout au long de la nuit.

Modular delivery system

Delivered in manageable boxes for easier transport and setup.

Easier to transport

The Naturalist mattress is delivered in several manageable boxes instead of one large package, making transportation much easier.

Easier to carry upstairs

Smaller boxes are easier to carry through narrow staircases, elevators and hallways.

Assemblage simple

Les couches du matelas s'assemblent facilement à la maison, créant la structure complète du matelas en quelques étapes seulement.

Assembly instructions are included with every mattress.

Compare Naturalist mattress models

All Naturalist mattresses are made from certified natural materials. This table helps compare which model suits different sleep needs.

Hybride Naturaliste Naturalist Full Latex Naturalist Full Latex Plus Naturalist Horsehair
Best sleeping position All positions Side & back Back & stomach All positions
Pressure relief Excellent Superior Bon Excellent
Soutien spinal Excellent Good Superior Excellent
Régulation de la température Bon Excellent Good Superior
Motion isolation Good Excellent Good Excellent
Edge support Superior Good Excellent Excellent
Breathability Excellent Superior Bon Superior
Matériaux naturels 100% natural components 100% natural components 100% natural components 100% natural components
Durabilité 15+ years 20+ years 15+ ans 25+ years
Ideal sleeper weight All weights Léger à moyen Tous les poids All weights

Sleep on it for 90 nights

Try your Naturalist mattress at home and take time to decide if it's right for you.

90-night sleep trial

90-night sleep trial

Sleep on your Naturalist mattress at home for up to 90 nights and see how it feels over time.

Confort ajustable

Confort ajustable

The modular construction allows small comfort adjustments if the mattress feels too firm.

Garantie de 10 ans

Garantie de 10 ans

Naturalist mattresses are built using durable natural materials and are covered by a 10-year warranty.

Free EU delivery

Free EU delivery

Your mattress is delivered across the EU in modular boxes that are easier to transport and assemble.

Made close to nature

Naturalist mattresses are produced in a factory surrounded by forests and lakes using renewable energy and natural materials.

A mattress inspired by nature

Naturalist mattresses are created in a peaceful natural environment where forests, water and fresh air are part of everyday life. This connection to nature influences how we design our mattresses and the materials we choose.

Responsible production

Our factory uses renewable energy from rooftop solar panels, helping reduce environmental impact while producing durable natural sleep products.

Crafted with care

Each Naturalist mattress is assembled by experienced craftsmen and designed to provide long-lasting comfort using certified natural materials.

Designed for better sleep. Created with respect for nature.