also: こまくら
noun
wooden pillow
A pillow made of wood, historically used in Japan to preserve hairstyles or for cooling.
昔の日本では、髪型を崩さないように木枕を使うことがあった。
In old Japan, wooden pillows were sometimes used to keep hairstyles from getting messed up.
Compound of 木 (ki, 'wood') and 枕 (makura, 'pillow'). The reading きまくら is the standard kun'yomi combination; こまくら is a less common variant.