7-Zone Cold Foam Mattress Berlin, Height 20 cm

7-zone cold foam mattress "Berlin"

Manufactured by Gerz Mattresses – Made in Germany

The 7-zone cold foam mattress Berlin from Gerz Mattresses stands for the highest ergonomic standards, innovative surface structure, and particularly stable lying properties. Made in Germany, it combines durable Soy Cold Foam RG 50 with a sophisticated multi-layer construction – ideal for demanding sleepers.

Soy Cold Foam RG 50 with 7-zone cube profile and vital cone surface

The mattress core consists of a 7-zone cube profile cut made of Soy Cold Foam RG 50 and is constructed as a 3-layer system:

• Cube profile cut:
  The cube-shaped resolved structure provides very fine point elasticity. Each cube reacts individually to pressure, allowing shoulders, pelvis, and back to sink exactly where relief is needed.
• Vital cone surface:
  The resolved surface with vital cones not only adapts optimally to the body but also promotes stimulation of skin circulation through micro-movements – especially pleasant during extended lying.
• 3-layer construction with 7 lying zones:
  The combination of a supportive base layer, ergonomic middle layer, and adaptive surface provides stable support with high adaptability.
• Surrounding edge reinforcement:
  Defines a clear sleeping area, increases edge stability, and makes getting in and out easier – also ideal for people who want to use the entire lying surface.

Soy Cold Foam RG 50 is a high-quality advancement of classic cold foam. A portion of the petroleum-based raw materials is replaced by plant-based components (soy oil).

Soy cold foam is preferred in premium mattresses because it remains permanently stable and retains its ergonomic properties even with intensive use.

The used soy cold foam RG 50 stands for very high material density, shape stability and durability.
👉 RG describes the quality and lifespan of the foam, not the firmness.
The sleeping feel is determined by firmness level H2 or H3.

Cover – hygienic, breathable and high-quality

The cover consists of double cloth with silver lurex (58% PES / 40% VISC / 2% PA) and is equipped with a treatment against bacteria and house dust mites.

• Removable & divisible by zipper all around
• Washable up to 60 °C
• 4 turning loops for easy rotating
• Climate band for improved air circulation
• Suitable for allergy sufferers

Product Features

• Manufacturer: Gerz Mattresses
• Country of manufacture: Germany (Made in Germany)
• Core: 7-zone soy cold foam RG 50 with cube profile, vital cone surface, 3-layer construction
• Special features: all-around edge reinforcement, blood circulation-promoting surface
• Sleeping comfort: highly point-elastic, ergonomic, stable and durable
• Cover: double cloth with silver lurex, antibacterial & mite-resistant

Dimensions

• Core height: approx. 18 cm
• Total height: approx. 20–21 cm

Firmness grades

• Firmness grade II (H2): medium / rather soft
• Firmness grade III (H3): medium-firm

Note: Firmness grades are not standardized. RG 50 stands for material quality, not firmness.

Available sizes

• 80 × 200 cm
• 90 × 190 cm
• 90 × 200 cm
• 100 × 200 cm
• 120 × 200 cm
• 140 × 200 cm
• 160 × 200 cm
• 180 × 200 cm

Special sizes and extra lengths available on request.

Berlin or Stuttgart – which mattress is the better choice?

Whether the 7-zone cold foam mattress Stuttgart or Berlin is "better" cannot be answered generally. Both models are high-quality manufactured but follow different ergonomic concepts. What matters is which sleep needs are prioritized.

1st structural difference

Stuttgart

• Core structure:
  7-zone cut with cold foam springs and cold foam cover plates with ventilation holes
• Special features:
• • Cold foam springs act similarly to pocket springs – but completely metal-free
  • Different firmness levels of the foam springs provide a springy, point-elastic body adaptation
  • 11 rows of ventilation holes (at 200 cm length) for very good air circulation

Strengths:

• Excellent moisture and heat regulation
• Noticeably elastic, dynamic lying sensation
• Ideal for people who sweat more at night or prefer an airy sleeping climate

Berlin

• Core structure:
  7-zone cube profile cut from soy cold foam RG 50 with vital cone surface
• Special features:
• • Cube profile enables a very fine, pinpoint pressure relief
  • Vital cones stimulate skin circulation through micro-movements
  • Encircling edge reinforcement ensures a clearly defined and stable sleeping area
  • 3-layer construction for high shape stability and long-lasting lying comfort

Strengths:

• Very precise ergonomic adjustment
• Especially good pressure relief for shoulders, pelvis, and back
• High edge stability and calm, stable lying sensation

2. Which mattress is suitable for whom?

3. Decision aid

Stuttgart is the better choice if:

• a cool, dry sleeping climate is especially important
• a springy, dynamic lying sensation is preferred
• there is a lot of movement during sleep at night
• metal springs should be avoided

➡ Focus on ventilation, elasticity, and climate comfort

Berlin is the better choice if:

• Pressure relief (e.g., shoulders, hips, back) is top priority
• a very stable and quiet lying surface is desired
• edge stability is important
• a particularly high-quality, durable foam core is preferred

➡ Focus on ergonomics, stability, and precise adjustment

Briefly summarized

Stuttgart: Airy, elastic, springy – ideal for a pleasant sleeping climate
Berlin: Precise, stable, pressure-relieving – ideal for ergonomically demanding sleepers