If you suffer from allergies it is important to opt for a mattress that not only offers comfort and support, but has anti-allergenic properties so that you can sleep soundly without compromising on your health and wellbeing. What causes allergies in bed? Dust mite faeces rather than the actual dust mites are the main culprit to allergic reactions in bed. Common allergic reactions to dust mite faeces include sneezing, itching, watery eyes and wheezing. Dust mite allergies have also been.