Water (Sandman)

 is a dangerous, irremovable Hazard in Sandman. It is blue, and both Sleepwalker and Nightmares will drown in it.

Description
Water will stay in one place, and never move. Sand can be poured on top of the water, and will eventual rise out, creating a platform for the Sleepwalker.It is dangerous to both Sleepwalkers and Nightmares.