Question

Miss M usually sleeps only 1 hour per night. Although she is retired, she keeps busy painting, writing, and volunteering in the community. Although she becomes tired physically, she never reports feeling sleepy. During the night she sits on her bed reading, writing, crocheting, or painting. At about 2:00 a.m., she often falls asleep without any preceding drowsiness, and when she wakes about 1 hour later, she feels wide awake. She came to the laboratory for some sleep tests, but on the first night we ran into a snag. She told us she did not sleep at all if she had interesting things to do, and she found her visit to a sleep laboratory very interesting. She had someone to talk to for the whole of the night. In the morning, we broke into shifts so that some could sleep while at least one person stayed with her. The second night was the same as the first. Finally, on the third night, she promised to try to sleep, and she did. The only abnormal thing about her sleep was that it was brief. After 99 minutes, she could sleep no more. Why can't she sleep ?

          Miss M usually sleeps only 1 hour per night. Although she is
retired, she keeps busy painting, writing, and volunteering in the
community. Although she becomes tired physically, she never reports
feeling sleepy. During the night she sits on her bed reading,
writing, crocheting, or painting. At about 2:00 a.m., she often
falls asleep without any preceding drowsiness, and when she wakes
about 1 hour later, she feels wide awake. She came to the
laboratory for some sleep tests, but on the first night we ran into
a snag. She told us she did not sleep at all if she had interesting
things to do, and she found her visit to a sleep laboratory very
interesting. She had someone to talk to for the whole of the night.
In the morning, we broke into shifts so that some could sleep while
at least one person stayed with her. The second night was the same
as the first. Finally, on the third night, she promised to try to
sleep, and she did. The only abnormal thing about her sleep was
that it was brief. After 99 minutes, she could sleep no more.
Why can't she sleep ?

miss m usually sleeps only 1 hour per night although she is retired she keeps busy painting writing and volunteering in the community although she becomes tired physically she never reports 04086

Added by Kristina A.

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