Reply from our Silentnight Expert:
We do not have a mattress that we term "medicated".
We do offer mattresses which are hypoalergenic with anti-dust mite properties for a healthy night's sleep. We also have mattresses treated with Purotex. Purotex® is the only solution, which is 100% natural. The friendly bacteria, which reduces mould and moisture, keeps dust-mites at bay and reduces allergens for a drier, fresher, healthier mattress throughout.
We suggest that you ask the manufacturer of the medicated mattress to qualify exactly what the term means.