Notes | |
Increased | |
Nocturnal awakenings | |
Daytime napping | Likely due to the above |
Nocturnal sleep latency | Time to fall asleep during the day is longer or unchanged |
Snoring | |
Decreased | |
Total sleep time | May be offset by daytime napping |
Sleep efficiency | Ratio of time asleep to time in bed decreases likely due to nocturnal awakenings |
Rapid eye movement (REM) latency | Time to get to REM sleep is shorter |
Percentage of time in REM | |
Slow wave sleep | 20% in young adult to 10% by 70 years |
Daytime sleep latency | Time to fall asleep during the day is shorter |
Other | |
Phase advance | Feel sleepy earlier in the evening and wake up earlier in the morning |
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