We are all familiar with the circular bolster, a cushioned comfort that adds to the beauty of a sofa or a bed. The Thai triangular pillow is a combination of six such bolsters, three at the base, two above it and one at the top. This results in a unique triangular shape, against which one could recline. To me it seems very artistic and ingenuous. The pillow comes in many sizes with colourful, embroidered cloth. In small sizes it could be an easy souvenir to carry. The photograph below is one such souvenir, which I am having since 1989, acquired from Narayanphand.
In large sizes, if one could combine three such pillows, two parallel to each other placed on the ground and one inverted in between them, it would make an exquisite bed. Something creative indeed has endless possibilities.