Sleeping Tree Sap

Sleeping Tree Sap is a potion in The Elder Scrolls V: Skyrim. When consumed, the screen turns purple and distorts. Drinkers experience slower movement speed.

Narcotic properties
It seems to be a hallucinogenic as it causes a purple screen distortion and is often sold by people who also sell moonsugar and skooma.

Acquisition
It may be obtained by activating the "sap spigot" located on the base of the glowing tree in Sleeping Tree Camp. It can also be looted or pickpocketed from a skooma dealer.

Uses
It can be sold to Ysolda in Whiterun for an increased price after finding Ulag's body in the Sleeping Tree Cave