Heat insolation

Since down and feathers are natural materials they undergo a certain natural ageing process. In the course of time the filling gradually desiccates and you will find an increasing number of broken and damaged down and feathers. You can slow down the process by proper care (fluff up the duvet or pillow every day and air them regularly), but you cannot stop it.

 

If your duvet is not worn out, you should have it cleaned to remove residue such as sweat.

Bedding products filled with down and feathers are capable of providing a high degree of thermal insulation with a low filling weight. The comparatively low filling weight is a significant factor for sleeping comfort – the duvet is supposed to keep the body warm with very little weight.

Humidity is another important criterion for the climate in bed.

Down-and-feather-filled duvets are always capable to regulate the climate in bed. The idea of heat accumulation under a down–and-feather-filled duvet might trace back to the “bulging balloon bed” shown on the pictures in Wilhelm Busch´s classic children´s stories. However, scientific research on the subject “micro climate in bed“ revealed that high temperatures do not occur under featherbeds, even less under a down-filled duvet which is light by nature.

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Due to their chemical structure, feathers are poor heat conductors. Besides, they form millions of small hollows (air pockets) imbedding a large volume of air which acts as an insulating layer.

 

Goose and duck feathers have a curved and soft quill which brings about excellent fill power, i. e. the capacity to unfold the largest possible volume again and again, at the same time imbedding millions of insulating air pockets.

 

Chicken feathers, however, have a flat shape. The main part of the quill is flat, i.e. the firm shaft in the middle.

Among experts, this term describes the capability of feathers and especially of down to offer a high degree of thermal insulation without much weight ensuring excellent sleep comfort.

The quilt and the filling themselves do not keep the body warm. The feathers and down make sure that the heat of the body does not disappear, i. e. they store the heat.

 

The insulating capacity which acts as a barrier against cold is one of the most outstanding properties of down and feathers (the capacity to store warmth, heat insulation). This property is grounded on the capability of down and feathers to store millions of insulating air-filled buffers.

 

You know that air is not a good heat conductor.