Literature Reference: 夜夜相抱眠，幽怀尚沈结。—— 《相和歌辞 决绝[词]三首 三》 Night after night, we embrace in sleep, yet deep sorrow lingers in our hearts. Source from 'Xianghe Geci Juejue [Ci] Sanshou San'.
夜: The original meaning: The time from dusk till dawn, also used to depict mystery.
眠: Sleep, restful slumber. In a name, it often signifies smooth sailing and tranquility.
Meaning: Night sleep symbolizes tranquility, serenity, and inner peace in the deep night.