This commemorative day was created by a pillow company because of the way it's said in English!
Pillows play a role in reducing the load on the neck as well as preserving your body's standing posture when you're sleeping!I can sleep anywhere~!Are you the kind of person that can't fall asleep when they change their pillow?Pirou
"Pillow" written according to Japanese phonetics.
The pun goes as follows: In Japanese, 1 can be said as "hito" or "hi" in the "hifumi" number system, and the handakuon version of "hi" is "pi".
As for the 6, it's "roku", which abbreviated gives you "ro".
So, pi-ro = 1/6.
