Bedding under the Microscope!  The climate under the duvet and
the properties of the mattress represent the most important
criteria for human comfort while sleeping.  The interaction
between human and material characteristics during the creation
of the bed hollow climate is determined by the laws of heat
regulation for humans.  The microclimate of the bed hollow is
crucially influenced by the climatic situation in the bedroom
and the design of the bedding.  As part of a scientific study
conducted by the University of Kiel in 1992, the issue of what
impact the bedding has on the microclimate of the bed hollow was
investigated in particular.  The insulating effect of a duvet
depends primarily on the    • the filling material (e.g. down
and feathers)   • the filling quantity (in g)   • the type of
stitching (e.g. processing of the inner webs, geometry of the
stitching)   • the billowing capacity (i.e. capacity of the
filling to bind the air, as this cushion of air is extremely
important for the insulating capaci