Zen Awakening ZA170
That will roll you back and perform an amazing array of different massages using roller technology and air pressure bags to hold your feet and shins in place while it stretches your vertebrae (f'rinstance) .. one of about thirty to forty different techniques ... the cost of chair is about 5K.
My "rides" have almost completely relieved me of my stenosis pain (the venturi is still there) and I mowed the two acres yesterday with NO arm and shoulder pain which AWAYS happened.
I give this account because I think the hibernation technique probably DOES work and with tubal feeding and a massage chair every so often, I think the awaked astronaut wouldn't feel too awful bad for the sleep.