Figure 2.
Bland–Altman plots comparing minutes for wake (A), sleep latency (B), wake after sleep onset (WASO, (C)), and sleep efficiency (D) between PSG and each device (Oura Ring, Fitbit, Apple Watch).
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.