If there are more plaster muffle ;-) I am (now multiple) procedure:
Washing:
- As its only piece of laundry in the machine
- Gentle cycle with high water, 30 degrees. Short program just fine!
- I hurled at 1000 revolutions
- Detergent: liquid light-duty detergents
Drying:
- Together with a dry towel (which is behind wet)
- Synthetic cycle with careful drying function (ie relatively cool) if necessary, ventilate only cold, so about 15 minutes
Although my sheets after a few washes still looks like new, my comments are for guidance purposes only, please do and imitate only at your own risk.