Figure 2.

Illustration of the nine sleep postures with three blanket conditions (thick, medium, and thin). The postures are: supine (S); left lateral side lying with both legs extended (L. Log); left lateral side lying at a half-stomach position (L. Sto); left lateral side lying at a fetal position (L. Fet); right lateral side lying (R. Log); right lateral side lying at a half-stomach position (R. Sto); right lateral side lying at a fetal position (R. Fet.); prone position with head turned left (L. Pr.); and prone position with head turned right (R. Pr.). The no-blanket condition is displayed for illustration and not included in the dataset.