Longsleep is one of the techniques in Deathweaving. A weaver can place someone into a coma-like state where their echo in the echolands becomes active but all their bodily functions (including the need to eat, breathe, and drink) are all slowed down greatly. Longsleep does not completely stop the need for any of the aforementioned things, but rather it simply extends the amount of time in which a person can explore the echolands. Someone who is in the echo lands but is still alive is called a bright echo.