It is unclear as to where this tradition originated from. However it is known that before the 1930's, cloth was put in larders to bring prosperity and good luck to the household.
The first refrigerator to see widespread use was the General Electric "Monitor-Top" refrigerator which was introduced in 1927. Since then fridges have replaced larders worldwide, causing the old tradition to be unheard of.
However, the national tradition of putting cloth into larders didn't die with the larder. Since then, the old tradition has gradually developed over the years, and is now celebrated by placing a pillow on, or inside the refrigerator.
If this national holiday is something you celebrate every year, or you've only just found out about it, why not join in and hope it brings you luck! If you would like to be involved with this special day and see your photo on this site, please take a photo of your pillow on your fridge and upload the image, then send me the link either in a comment below, or by email and I will upload the best here!