After I completed each drawing, they were placed in a wooden box. The interior length of the box is 19 inches long, which corresponds to my daughter's height at birth. The project ended when I could no longer fit drawings into the box.

zzzz concluded on November 2, 2023, and consists of 1,232 drawings. On average I was making 3-4 drawings a day at the beginning of the project, and 1 drawing per day near the end. This corresponded with her sleep schedule, which fluctuated over the course of two years. At the end of the project I sealed the box. The final piece is a block of time that captures the beginning of my daughter's life.

The box was constructed by Trappist Caskets of New Melleray Abbey in Peosta, Iowa.