01 Celsius Comfort · Viscoelastic technology

Born from pressure.Made for rest.

From technology created to manage extraordinary forces to viscoelastic comfort designed around the human body.

02 The origin

It started with pressure.

When humans prepared to travel farther and faster than ever before, the forces acting on the body became an engineering challenge of their own.

During launch, astronauts could be exposed to powerful acceleration forces. NASA’s research into human protection, energy absorption and advanced cushioning contributed to the development of new materials and solutions. Among these developments was Temper Foam – an early viscoelastic material that NASA has later described in connection with protecting astronauts from the forces experienced during liftoff.^1–3

The idea was remarkably simple: instead of allowing pressure to concentrate in a few places, create a material that could respond to the body, absorb energy and distribute load across a larger surface.

Apollo 8 crew inside the centrifuge gondola during training, 1968 — Apollo 8 crew in the centrifuge gondola, Manned Spacecraft Center, 1968. NASA · S68-53283

The centrifuge gondola in the Flight Acceleration Facility, 1966 — Centrifuge gondola, Flight Acceleration Facility, 1966. NASA · S66-17698

Apollo 11 Saturn V lifting off from Launch Complex 39A, 16 July 1969 — Apollo 11 liftoff, Launch Complex 39A, 16 July 1969. NASA · KSC-69PC-442

Space technologyHuman comfort

03 From space to sleep

From extreme forces to everyday comfort.

A material developed around pressure, energy and the human body did not remain in aerospace.

The same fundamental properties that made viscoelastic foam interesting under demanding conditions – its ability to respond to pressure, conform to shape and distribute load – also made it relevant wherever the human body meets a surface.

1960s / 70sNASA research & early viscoelastic technology
→Viscoelastic foamPressure response · energy absorption · recovery
→Medical applicationsSupporting and distributing pressure across the body
→Sleep technologyMattresses · toppers · pillows
→Celsius® Viscoelastic FoamA modern temperature-sensitive viscoelastic material
→Celsius ComfortComfort adapted to the individual

04 The material

A material that responds to you.

Celsius® Viscoelastic Foam is a temperature-sensitive viscoelastic material. It responds to the combination of body heat and pressure, allowing the material to gradually conform to the shape resting against it.⁴

Remove the load, and the material slowly begins to recover its original form.

Press and hold on the surface →

Surface · illustration22.0 °C

22°33°

Temperature

Responds to body heat

The material becomes more responsive where warmth meets the surface.

Pressure

Follows the load

Instead of concentrating pressure at individual points, the material conforms around the body and helps distribute the load across a larger surface.

Recovery

Returns gradually

When pressure and warmth are removed, the material gradually returns towards its original form.

05 Celsius Comfort

One technology. Made personal.

No two bodies are exactly alike. So why should one fixed level of support fit everyone?

Shoulder width, body shape, mattress firmness and sleeping position all influence how much support feels right. Celsius Comfort brings the properties of Celsius® Viscoelastic Foam into products designed around individual comfort.

Celsius Comfort Pillow

The pillow arrives fully filled. If it feels too high or too firm, filling can be removed until the height feels right. Keep what you remove – it can be added back later if your preference changes.

The result is not one predetermined pillow height, but a pillow that can be adjusted to the person sleeping on it.

06 The Celsius Comfort range

One material. One family.

Celsius Comfort

Adjustable viscoelastic pillow.

Celsius Comfort Mini

The same viscoelastic comfort in a smaller format.

Celsius Comfort Topper

A 7 cm viscoelastic comfort layer designed to conform around shoulders, hips and the contours of the body.

Available from Helse-Invest →

07 The whole body

Where the body meets the bed.

The human body is not flat.

When we lie down, areas such as the shoulders and hips carry more of the load than others. On a firm surface, these areas meet greater resistance.

A viscoelastic comfort layer allows prominent areas of the body to sink further into the material while the surrounding surface continues to provide support. The result is a larger contact area and a more distributed load.

Illustration – not measured pressure data.

08 Head, neck & body

The Neutral Line

Support is not about making a pillow higher or softer. It is about finding the height that fits you.

Too lowThe head drops below a more natural alignment.

Too highThe head is pushed upwards.

Balanced supportThe head and neck rest in a more natural position.

Illustration · side-lying, seen from behind · final version: anatomical 3D illustration

The Neutral Line

Shoulder width, sleeping position and the mattress beneath you all influence the distance between the head and the sleeping surface.

That is why Celsius Comfort is adjustable. The goal is not to make everyone sleep at the same height. The goal is to make the pillow adapt to the individual.

Head & neck position

Chin towards chestMore neutral

Illustration of a principle · not a product effect · not measured data

09 Breathing

Space to breathe.

Sometimes, position matters.

Snoring occurs when airflow through the upper airway causes surrounding tissue to vibrate during sleep. The position of the head and neck can influence the geometry of this airway.

Research suggests that changing head and neck position can reduce snoring in some people, including studies using specially designed pillows and head-positioning devices.^5–7

Celsius Comfort has not been tested in these studies.

What Celsius Comfort does provide is adjustable support designed to help the head and neck maintain a comfortable position through the night.

Over the years, many Celsius Comfort users have told us that they experience less snoring when using the pillow. Individual experiences vary, and snoring can have many different causes.

Loud snoring accompanied by pauses in breathing can be a sign of sleep apnoea and should be medically assessed.

10 Every night

8 hours.Every night.Thousands of nights.

8hours a night

2,920hours a year

29,200hours in ten years

We spend extraordinary amounts of time thinking about the mattress beneath us. Yet the pillow directly supports the head and neck for thousands of hours of sleep.

Something used every night deserves more thought than something used occasionally.

What you sleep on matters.

11 The Celsius story

Pressure→Adaptation→Support→Recovery→Comfort

CELSIUS COMFORT Technology evolved. Comfort refined.

12 Sources & science

The science behind the story.

NASA & history

NASA Spinoff 2005 – “Forty-Year-Old Foam Springs Back With New Benefits”Charles Yost, Ames Research Center and the development of temper foam.
NASA Spinoff 2002 – “Foot Comfort for the Fashionable”Describes temper foam in connection with G-forces experienced by astronauts during rocket launches.
NASA Johnson Space Center – “NASA Technology Spinoffs: Improving Life on Earth” (PDF)Describes Temper Foam in connection with protecting astronauts from the forces experienced during liftoff.

NASA images are used for historical illustration. Their use does not imply endorsement by NASA.