Sleeping device comprising an active heat absorbing/releasing layer in combination with a spacer material layer

Abstract

The present invention relates to a sleeping device, such as a mattress, quilt or pillow, wherein the sleeping device is adapted to be used by a person during rest and comprises a core element, wherein said core element is covered by a first layer of a material having temperature regulating properties by absorbing and releasing heat and a second layer of down. By using a material with temperature regulating properties together with a layer of down filling, very good properties of minimizing temperature variations are obtained.

Description

FIELD OF THE INVENTION The present invention relates to a sleeping device, such as a mattress, pillow or quilt. BACKGROUND OF THE INVENTION [0001] During sleep the human body goes through different phases, and in these phases the body temperature varies both as a result of internal temperature changes in the body during sleep and because of variations of the temperature in the surroundings. These temperature variations disturb the sleep. It is especially important in connection with the sleep that the most important phase—the REM phase—is undisturbed, because in this phase the brain is recharged and prepared for the next waken period. Another effect of the temperature changes is that the quilt covering the person is kicked off during sleep, which often results in the person waking up later by freezing. Further, the temperature changes might also result in a sweaty, wet mattress. In both cases the temperature change does not only disturb the sleep, but might also result in sickness. ...

AI Technical Summary

Benefits of technology

[0009] By using a material with temperature regulating properties together with a layer of spacer material, very good properties of minimizing temperature variations are obtained. By using a spacer material, moist can easily vanish because of air circulation from the surroundings, and by minimizing the moist tests have shown that the functionality of temperature regulating materials such as e.g. phase change materials is improved considerably. Thereby, the temperature regulating material can be used to fulfill the quite strict requirements to temperature variation which is necessary in order to get an undisturbed sleep—and especially an undisturbed REM sleep. Further, by using the temperature regulating material in the sleeping device, such as the mattress, it is avoided that the user gets sick, both because a better sleep improves the immune system and because the risk of the person unintentionally kicking off the quilt or making the mattress wet because of sweat is reduced. Further, since the risk of the mattress getting sweaty is reduced, the frequency of which the mattress and / or mattress covers has / have to be cleaned can be reduced.

[0010] Examples of spacer material are distance mess, a 3mesh® product from Müller Textil. By using this product it is possible to adjust the hardness and the spring characteristics.

[0011] In an embodiment the temperature regulating material comprises a phase change material. This material has proven to be a good material to be used in a sleeping device and can be adapted to optimally minimize the temperature variations in temperature ranges around the human body temperature.

[0012] In an embodiment the sleeping device further comprises a third layer of down above said second layer. Compared to e.g. fiber filling, down filling has very good moist absorbing properties, and this therefore further reduces the moist and improves the functionality of the phase change layer.

[0014] In an embodiment the third layer of down comprise goose downs. Goose downs have proven to be very good at absorbing moist, whereby the functionality of the temperature regulating material is improved.

Problems solved by technology

These temperature variations disturb the sleep.

Another effect of the temperature changes is that the quilt covering the person is kicked off during sleep, which often results in the person waking up later by freezing.

Further, the temperature changes might also result in a sweaty, wet mattress.

In both cases the temperature change does not only disturb the sleep, but might also result in sickness.

A problem with this solution is that during sleep moist from the body is generated, and the moist is then absorbed in the layer following the phase change material which typically could be the core of a mattress or a layer of synthetic filling between the core and the phase change material.

The moist decreases the effect of the phase change material considerably, whereby the introduction of the phase change material does not sufficiently solve the problem of minimising the temperature variations during sleep.

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