The average mission to the International Space Station lasts 6 months, and nearly 50% of the astronauts aboard report lack of sleep. Sleep is essential to maintaining the physical and cognitive abilities necessary to perform most tasks, especially in a high-risk environment such as space.

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Because of this, HYPNOS is developing Selene, a set of capsules designed to regulate astronauts' circadian rhythm to counter the effects of life in space, where they experience 16 solar cycles every 24 hours. Nyx, the software that runs Selene, will also connect with a bio-tracker like Fit Bit to understand how astronauts are sleeping and adjust its sleep cycle to individuals' preferences.

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Selene is intended to be the ideal sleep habitat for space travel. Although the initial design was based on the specifications for the current ISS sleeping quarters, HYPNOS is now looking towards the future. The final product will aim to create a comfortable and natural sleep environment for astronauts on any mission, from future space stations, to the Moon, and even to the surface of Mars.​