We are often asked our views on protective duvet and pillow cases or special bed covers and told about different types of duvets or beds that prevent dust mites.

On every mattress, duvet and pillow that we have ever tested, there has not been one product that has tested negative. Every item has shown the presence of dust mites, and unfortunately we cannot ascertain if these products have made any improvement to the level of dust mites present. For more information, please refer to 'Why Clean a Mattress?' and see the link on research into protective covers.

Our advice is, if you are suffering from an allergy and are looking for a way to feel better then try what you think is right for you. Certainly don't stop using something if you are comfortable sleeping with it - if that means protective bedding sheets or a special duvet, then it is better to have taken some positive action than none. However, if you do decide on protective covers, ensure that the particular item you are encasing is either new or has been sterilised and cleaned first, otherwise you may only be incubating whatever is already inside your mattress or bedding.

Secondly, if you decide to use an anti-dust mite spray, try to find one that is chemical free, for safety reasons and one that is clear, so there is little or no chance of staining. Some sprays may only be suitable for certain areas of the home, or may be hazardous to pets and babies, requiring a long time for airing. Also make sure that you don't use these around the house where there is food and cutlery. Some of these sprays may also suggest cleaning the items they are to be used on first, see our comments on vacuuming yourself and the importance of hot washes. Always read the instructions carefully and keep away from young children as with any household products.

Appointments: A 10% discount may only apply when our on-line 'Special Offer' form has been completed and it applies to the cleaning process only, not to any items available for purchase. A cancellation fee of 45 will apply if the dealer does not receive 24 hours notice to cancel an appointment.