Ya know I waz thinkin' - if you mounted it on a cieling facing down and you could lay down somehow to use it you might not even notice the lack of space - but then the blood would rush out of your arms when you used it and you'd get muscle fatigue over time ... also transporting it might pose a problem. Still - I wouldn't kick it outa bed for eating crackers!

Ya know when I first read about it I had the passing thought that geologist kidding me!