Balanced latex support with natural horsehair breathability — designed for combination sleepers

Naturalist Heritage — Medium Firm

Name: Naturalist Heritage — Medium Firm
Brand: Naturalist-Mattress
SKU: NM-HH-180FFS
Price: 1184.0 EUR
Availability: InStock

The Heritage Medium Firm is designed for combination sleepers who also tend to run warm. Natural latex in a medium firm configuration helps maintain support across different sleeping positions, while the horsehair layer is structured to improve airflow and moisture management throughout the mattress.

Built to last 25+ years. Made with materials from GOLS and GOTS certified suppliers.

• Designed for combination sleepers who shift positions during the night
• Medium firm latex helps support natural alignment across back and side positions
• Natural horsehair layer — designed to improve airflow and moisture management
• Natural latex sourced from GOLS certified suppliers · Cotton and wool sourced from GOTS certified suppliers — 25+ year tested lifespan

Choose your size: 80x200 cm 90x200 cm 160x200 cm 180x200 cm

Product variants

€2.152,00 EUR

~~€2.690,00 EUR~~ €2.152,00 EUR

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✔ 90-Night Risk-Free Trial

✔ 10-Year Warranty

✔ Free EU Delivery — No Hidden Costs

✔ Certified Natural Materials — No Foam, No Chemicals

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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

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

Balanced firmness prevents excessive sinking while the deeper latex construction adapts smoothly to the body’s natural curves.

Enhanced airflow and moisture control

The natural horsehair layer improves ventilation and helps regulate humidity throughout the night. Creates a cooler, drier sleep environment without compromising support.

If your mattress lacks balance, your sleep can suffer

A balanced latex construction with a natural horsehair layer improves alignment, reduces pressure, and helps maintain a cooler sleep environment.

Poor spinal alignment

Without the right balance of support and cushioning, the spine can fall out of alignment. A layered latex construction distributes weight evenly and helps maintain a healthy posture.

Pressure without proper support

Too much firmness can create pressure points, while too little support can cause sinking. A balanced structure relieves pressure while keeping your body properly supported.

Restless sleep

Discomfort can lead to constant movement during the night. A more adaptive, balanced surface helps your body settle and stay comfortable for longer.

Overheating during sleep

Excess heat can disrupt your rest and cause frequent wake-ups. The natural horsehair layer improves airflow and moisture control, helping maintain a cooler, drier sleep environment.

Sleep closer to nature

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

Organic cotton and wool cover

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

Natural horsehair comfort layer

Placed directly beneath the cover, the horsehair layer enhances airflow and moisture control at the surface. Helps release heat and maintain a cooler, drier sleep environment.

7-zone firm natural latex comfort layer

A firmer latex layer on top provides immediate support and helps keep your spine aligned across different sleeping positions.

Soft natural latex transition layer

A softer latex layer underneath adds cushioning and relieves pressure, allowing the body to relax without losing support.

Natural Dunlop Latex

Responsive and supportive, natural latex adapts to your body’s curves while maintaining proper alignment and pressure relief.

Organic Cotton and Wool

Breathable natural fibres regulate temperature and manage moisture, creating a clean and comfortable sleep surface.

Natural Horsehair

Naturally breathable and moisture-wicking, horsehair improves airflow and helps maintain a cooler, drier sleep environment throughout the night.

Breathable natural structure

An open, multi-layer construction allows continuous airflow through the mattress, reducing heat build-up and improving overall sleep comfort.

Certifications

GOLS certified latex

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

GOTS certified textiles

Covers organic cotton and wool, ensuring responsible production, safe processing, and traceability.

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

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

Cover materials
• Cotton and wool blend
• GOTS-certified (supplier level)
• Naturally breathable and moisture-regulating

Latex core
• Natural Dunlop latex
• GOLS-certified (supplier level)
• Durable, elastic, and supportive

Additional natural layers
• Coconut fibre — used in hybrid models for added structure
• Horsehair — used in selected models for enhanced airflow and moisture control

Naturalist firmness configurations

This mattress is currently configured as Soft.

Soft

Gentler pressure relief with deeper compression under load.

This setup allows the body to sink in more easily and creates a softer, more adaptive feel.

Recommended for:

Side sleepers
Combination sleepers
Light to medium body weight
Pressure-sensitive sleepers

Learn more

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.

Recommended for:

Back sleepers
Combination sleepers
Medium body weight
Sleepers who want both comfort and support

Firm

Higher resistance with reduced compression.

This setup increases structural support and limits surface deformation.

Recommended for:

Back sleepers
Stomach sleepers
Higher body weight
Sleepers requiring reduced sink

Learn more

Dual Comfort

Different firmness levels on each side of the mattress.

Each side operates independently within the same structure.

Recommended for:

Couples with different preferences
Partners with different body weights
Shared beds requiring separate configurations

Learn more

Adjust comfort by rearranging the latex layers

The mattress is built with three interchangeable latex layers that can be easily rearranged at home — while the natural horsehair layer on top enhances airflow and surface comfort in every configuration.

In its default setup, the firmer latex layer is on top, creating a balanced medium feel with stable support and controlled comfort.

Swap the top layer with a softer one, and the mattress becomes more adaptive and pressure-relieving — shifting into a Medium Soft feel.

Place the softest layers on top, and the mattress transforms into a deeper, more enveloping Soft version.

This gives you three distinct comfort options in one mattress — with consistent breathability and comfort in every setup.

More usable space, without compromise

Sleep, move, and use your bed freely — with support that stays consistent across the entire surface.

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.

More space when sharing the bed

Stable support helps reduce rolling toward the middle. Both sleepers can comfortably use their full side of the mattress.

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

Breathable natural materials help maintain a comfortable sleep temperature throughout the night.

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

Natural fibres absorb and release moisture, reducing that warm, damp feeling and keeping your sleep surface more balanced.

Always fresh and breathable

The internal structure allows continuous airflow, so the mattress stays light, airy, and comfortable throughout the night.

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.

Simple assembly

The mattress layers are assembled easily at home, creating the full mattress structure in just a few steps.

Assembly instructions are included with every mattress.

	Naturalist Hybrid	Naturalist Full Latex	Naturalist Full Latex Plus	Naturalist Horsehair
Best sleeping position	All positions	Side & back	Back & stomach	All positions
Pressure relief	Excellent	Superior	Good	Excellent
Spinal support	Excellent	Good	Superior	Excellent
Temperature regulation	Good	Excellent	Good	Superior
Motion isolation	Good	Excellent	Good	Excellent
Edge support	Superior	Good	Excellent	Excellent
Breathability	Excellent	Superior	Good	Superior
Natural materials	100% natural components	100% natural components	100% natural components	100% natural components
Durability	15+ years	20+ years	15+ years	25+ years
Ideal sleeper weight	All weights	Light to medium	All weights	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

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

Adjustable comfort

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

10-year warranty

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

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.

Naturalist Heritage — Medium Firm