S.H.E.E.P. for Sleeping in Zero-G


Article Preview

What it is like to sleep in zero gravity? Is it ever occurred to you? Sleep is actually a physical and mental resting state in which a person becomes relatively inactive, unaware of the environment, and is partially detachment from the world. It is a challenge for architects to design in a very extreme environment, which has different gravity, radiation exposure to avoid, the absence of basic needs (water, oxygen, etc.), sense of orientation (where is the top and where is the bottom?) etc. The lack of ability for human to stand straight in zero gravity environment – fetal position – leads to the choosing of that position for designing sleeping compartment in space – mimicking a sleeping baby, which is, in fact, the healthiest sleeping position. This idea becomes our guideline in proposing the design of a sleeping compartment in zero gravity, particularly in space station. It gives potential advantage for reducing the payloads of habitat module; size and weight, which is a common problems in space travel; mainly for reducing fuel and cost. But on the other hand, the quality of a good sleep should be considered, which is the main aspect of this design. What is a feasible sleeping compartment design for optimizing those needs? This research uses a design exploration approach to solve the problems and to find a suitable solution. The end result from this activity is S.H.E.E.P; Safe Haven with Ergonomics and Effective Performance. This sleeping compartment design is a private space for crew to rest comfortably without any interference from the external environment. This compartment is also equipped with necessary tools.



Main Theme:

Edited by:

R. Varatharajoo, E. J. Abdullah, D. L. Majid, F. I. Romli, A. S. Mohd Rafie and K. A. Ahmad




M. Khamdevi and F. Bachtiar, "S.H.E.E.P. for Sleeping in Zero-G", Applied Mechanics and Materials, Vol. 225, pp. 453-457, 2012

Online since:

November 2012




[1] P. Eckart, Spaceflight Life Support and Biospherics, Kluwer/Microcosm, U.S., 1996, p.397.

[2] R. Eleazer and K.R. Brown, The Real Space Tourism Industry, presented at 39th Space Congress, Florida (2002).

[3] S. Abitzsch, Prospects of Space Tourism, presented at The 9th European Aerospace Congress, Berlin (1996).

[4] Information on http: /www. talkaboutsleep. com/sleep-disorders/archives/intro. htm.

[5] Information on http: /www. sleepfoundation. org/article/sleep-topics/melatonin-and-sleep and http: /www. sleepfoundation. org/article/sleep-topics/sleep-drive-and-your-body-clock.

[6] Information on http: /pastelblueformysky. blogspot. com/2010/11/any-thing-about-sleep. html.

[7] T. Dirlich, Bemannte Raumfahrt, presented at Lift-Off Seminar TUM, Munich (2004).

[8] Information on http: /www. space. com/science-astronomygeneralscience/sleep_zerog_010823. html.

[9] Information on http: /www. liftoff. msfc. nasa. gov/academy/astronauts/sleep. html.

[10] Information on http: /dns2. lrt. mw. tu-muenchen. de/documents/Forschungsgruppen/bemannt/SpaceBed. pdf.

[11] Information on http: /www. osha. gov/SLTC/etools/computerworkstations/components_monitors. html.