Turn your existing mattress into the most comfortable and supportive sleeping surface available using our memory mattress topper the mattress topper also comes with a luxury removable zipped cover to add to the luxury benefits include keeps your correct posture relieves circulation problemsalways retains its shape never needs turning ideal for asthma sufferers moulds to your body hypoallergenic luxury removable zipped cover no springs reflex base foam anti allergenic breathable mattress