Use: it must be positioned in direct contact with the mattress, under ordinary sheets.
Washing: machine-washed at 60-90°C (mites die only at temperatures higher than 55°C), with any detergent, including bleach. It is recommended to wash the encasement every 4-6 months and to wipe the top surface every week with a well wrung damp cloth. It can also be spin-dried and tumble-dried.