The duvet should at least be 20 cm longer than the body size. If it is shorter, you will not enjoy restful sleep because your feet might get cold.
The width of the duvet should not be too small: The comfort size of 155 x 220 cm for a single duvet will be adequate for most people, but many sizes are available also double size, king size etc. and sizes for babies and juniors.
The type of duvet is crucially determined by the kind of stitching. A duvet is stitched-through in a certain manner to make the filling stay in place and permanently fix it.
Also, the way of stitching has an impact on the degree of thermal insulation. For instance, summer duvets are sewn fabric-to-fabric, intended to create cold zones.
As stipulated in the European standard EN 13186, duvets with a down content of at least 60% may be labelled as down duvet. Duvets with a down content below 60% are labelled as feather duvets.
Here is one point to remember: Pay attention to the labelled facts and the various brand names.
The labelled facts are very helpful, especially as regards the filling which is usually invisible to the eye. The label provides information on colour and origin of the down and feathers, indicates whether the down and feathers are new or have previously been used, the fowl species (goose or duck) and finally also the mixing ratio of down and feathers.
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.
For restful sleep it is important to select the right duvet. People have different needs with respect to restful sleep. Some have a predisposition to perspire, others feel cold easily. Some might prefer a voluminous duvet, the so- called ballon or bag duvet, and do not want a flat stitched-through duvet.
Especially eiderduck down are of high quality. They come from the species eiderduck that are living as protected birds in the wild on the coasts of the Northern Seas. Eiderduck down must be picked from the abandoned nests after the breeding period.