According to the results of study 1 and 2, the key points for
pillow design were derived as follows. 1) Pillow height for the supine
position and lateral position should be different. 2) Pillow
height for the supine position and lateral position are 3.7 cm and
14.8 cm for male, and 2.5 cm and 11.5 cm for female. 3) A neck rest
should be considered for neck support in the supine position. The
height of the neck rest is 3.0 cm for male and 2.9 cm for female. 4)
Pillow width should be referred to head breadth and head length,
and pillow depth should be referred to head height.
According to the design key points, a serial design process was
done by the study team to create a new design pillow. The materials
and forms of the current pillows were collected from the marketing.
Idea sketches and concept models were generated and made.
Some of them were showed in Figs. 3e4. The evaluation and
critique to the new design concepts were done for several runs. The
dimensions of the pillow were referred to the results of body
dimension measurement. A pillow prototype (Fig. 5) was finally
made of foam rubber for further performance tests.