sleepstage05 sleepstage07

Histogram

Sleep stage of sixth 30 second epoch in 5 minute window vs Visit Number
Baseline Follow-up
Total 44,621 39,667
Wake 4,012 2,959
Stage 1 3,365 2,776
Stage 2 16,771 16,047
Stage 3/4 12,824 11,143
Stage 3/4 - 45
REM stage 7,649 6,697