The Doppelsauger is a vampire creature of Germany, near Hanover. Its name literally means ‘double-sucker.’
The creature was supposed to be the revenant of a child who sucked his mother’s breast after being weaned. If the child dies, in its grave he consumed the flesh of his own breasts, and then would prey on a living member of his family, causing the person to lose weight.
In order to prevent a Doppelsauger, a coin could be placed between the teeth of the corpse, a semi-circular board could be placed under the chin, or precautions would need to place to ensure that the burial garments do not touch the lips of the corpse.