At DEIA Living we are concious of the environment however also aware of them importance of sleep and the benefit of sleeping on clean sheets. Our rule of thumb is a weekly wash in order to maintain a clean and hygienic sleeping environment. Obviously if you have more of a tendency to perspire or if your 4 legged friends sleep on the bed with you then it´s recommended to wash a little more frequently than this. If you are time poor a trick is to buy an extra set of pillow cases and rotate them in between a full sheet wash. Pillowcases come into direct contact with your face and hair therefore should be washed more regularly than the rest of your sheets if you would like to push out the regular weekly wash. Browse our pillow cases range here.