Oxygen Bed

Hello, Edward....Thanks for the comment. Here is not Slashdot, I can't expect comments as many as in /. The reason I' m writing here is first, I want to enhance my readers other than geeks. I can expect many female readers here. Second, I like this site, I can see many features including how often my writings are read. I can appreciate the colourful site, as well as the photos of many? readers.
Let's get back to topic here lest my comment should be moderated?? I have never used pillow, since pillow is to place our head higher than the rest of body. Since I was a kid I have realised I need to place my head lower than the rest of body. Regardless of whether I sleep in bed or futon.
It takes much money to furnish such a capsule bed, but in the near future such a bed will start being used.