Many of us are spending our nights under

 filthy duvets packed with dust mites, skin

 scales and fungus. Scientists analysed

ten duvets and found they contain up to

20,000 dust mites. One duvet had not been

washed for 11 years had more than an ounce

and a half of debris including skin scales and

dust mite faeces. Researches said seven of the

duvets had never been washed. All contained

large numbers of dead mites and debris.

Professor Jean Emberlin said in some cases

the levels of allergens were dangerous. The

dirtiest duvet could trigger symptoms of asthma

and conjunctivitis plus irritate existing cases of

eczema.