Artificial Gravity During Sleep Cycle

[Chandonn]

One concept I've not seen discussed when referring to artificial (spin/centrifuge) gravity does not rely on a constantly rotating section for the astronauts to live and work in 24/7.  I propose a cylindrical sleeping module (like a hab or hub on ISS) containing a centrifuge in which the sleeping compartments are mounted.  During the 8 hour (1/3 daily rotation) sleep period the compartments can be rotated around the perimeter of the module, to give the astronauts a 1g experience.  Normal body functions and even muscle movements during sleep could help negate some of the negatives of a continuous microgravity experience.

I have been wondering why i've not seen this concept proposed anywhere.

[whitelancer64]

Bed rest is used on Earth as an analog for the effects of zero gravity. So having only the sleeping area at gravity isn't going to help.