Mummification as a BDSM bondage practice involves restraining a person's body in a non-damaging way by wrapping it head to toe in materials like clingfilm, cloth, bandages, latex or linen sheet, rubber strips, plaster bandages, sleep sacks, or straitjackets. The end result being a person completely immobilized and looking like an Egyptian mummy. They may then either be left bound in a state of effective sensory deprivation for a period of time, or sensually stimulated in their state of bondage, before being released from their wrappings.
As with all bondage practices, there should be a means for the bound person to communicate in an emergency, and a way to release them quickly if necessary (for example, using EMT scissors to cut their bonds). A bound person should never be left alone.
Mummification is best done on the arms and torso first, leaving the legs free so the bottom can stand steadily. When the legs are being wrapped, the top should insure the bottom will not fall, and see that he or she is safely lowered to the floor or bed. It might seem an obvious statement but the top should ensure that the sub is correctly positioned before wrapping the legs. Trying to move a mummified person from one side of the room to the other is not easy. It is all too easy in a scene to get lost in the moment and to forget to plan ahead.
If the bottom's legs are mummified together, this may make the ankles or knees rub together, causing discomfort. A small amount of padding, such as a folded towel, solves this problem.
Prolonged mummification, particularly with materials like saran wrap or latex, can cause sweating and consequent dehydration in the bound person.
Body temperature (maintained to an extent by movement) may also be affected (some wrappings reflect warmth and others reduce it) so a suitably warm environment and possibly warmth (by blankets or similar) during aftercare may be important.