심노숭은 도망문의 기록의 일체인 침상집을 엮은 이유를 침상에서 썼기 때문이라고 하는데, 그것은 그가 잠들지 못했기에 그러하다.
Sim No-Sung said that the reason for weaving the bed guide, which is a record of this escape door, was because he penned it from the bed, and it was because he could not sleep.