The Dream Species are a race found in the Delta Quadrant. They are humanoid with prominent head ridges and orange skin.
Although they are corporeal, they use technology to exist in a collective dream state. They broadcast this collective dream into the surrounding space and use it to trap starship crews in a shared dream. The crews then perish as their bodies are not recieving food or water. This seems to be a defensive measure although it may be a method of attack.
The species itself exists as hundreds of sleeping bodies in a cavern, near the machine that allows the dream state to exist.
The race was encountered in 2374 by the USS Voyager but was defeated by Commander Chakotay, who had unusual command of his dreams. (VOY: "Waking Moments")