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Sleep is a semiconscious state, but there are neurons firing in the brain even when all seems quiet. Now brain activity during the deepest sleep phase could make it possible for people to communicate with the waking world during lucid dreaming.

If someone is lucid dreaming, they are aware they are dreaming and able to manipulate what happens in the dream. Sleep expert Michael Raduga of Phase Research Center has developed a “language” that’s intended to allow people to communicate while in that state. Called Remmyo, the first language of its kind, it relies on specific facial muscle movements that can occur during rapid eye movement (REM) sleep. Remmyo can be learned during waking hours like any other language. Anyone capable of lucid dreaming could potentially communicate in Remmyo while asleep.

“You can transfer all important information from lucid dreams using no more than three letters in a word,” Raduga, who founded Phase Research Center in 2007 to study sleep, told Ars. “This level of optimization took a lot of time and intellectual resources.”

Reaching lucidity

It takes about 90 minutes to transition from lighter sleep phases to REM sleep. REM sleep brings on a state of sleep paralysis—arm and leg muscles cannot move, which keeps us from playing out what is happening in the dream. Meanwhile, brain waves, heart rate, and blood pressure all become similar to the levels seen in the awake state. Breathing becomes faster and erratic. Even though eyelids remain closed, the sleeper’s eyes constantly move from side to side, giving the state its name.

This is when most dreams occur, including lucid dreams. Those are still an enigma but thought to be a hybrid of the waking and sleeping states.

Remmyo consists of six sets of facial movements that can be detected by electromyography (EMG) sensors on the face. Slight electrical impulses that reach facial muscles make them capable of movement during sleep paralysis, and these are picked up by sensors and transferred to software that can type, vocalize, and translate Remmyo. Translation depends on which Remmyo letters are used by the sleeper and picked up by the software, which already has information from multiple dictionaries stored in its virtual brain. It can translate Remmyo into another language as it is being “spoken” by the sleeper.

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