The Effect of White Noise In High Noise Environment

Insomnia patients will be recruited based on their perception of high noise in their
apartment. The investigators will screen patients during the first meeting using The Mini
International Neuropsychiatric Interview 6.0 (MINI 6.0). At baseline, an Insomnia Severity
Index will be administered.

The study will consist of a one week baseline period in which noise levels will be monitored
using spectral analysis and decibel levels and sleep duration will be recorded using a
subjective sleep log and wrist actigraphy for objective measurement. At the end of the first
week an Insomnia Severity Index will be administered.

During the second week, a treatment period with a white noise machine using a fixed decibel
level will be installed in the bedrooms of the subjects. The room noise will continue to be
monitored via spectral analysis as well as decibel levels while the patients are wearing
actigraphs and keeping a sleep log. At the end of the second week an Insomnia Severity Index
will be administered.

During the third week, the white noise machine will be removed and the rooms will still be
monitored for sound via spectral analysis and decibel levels and the subject will wear an
actigraph and keep a sleep log. At the end of the third week an Insomnia Severity Index will
be administered.

The total numbers of subjects will be 20. The investigators will use Analysis of Covariance
(ANCOVA) with baseline vs. white noise to analyze differences. The investigators will use an
Acute Noise Index, in which noise spikes of 2 standard deviations from the mean of the entire
nights decibel levels count as a noise event.

Noise levels in subjects bedroom will be collected throughout the study along with subjects
sleep activity using an actigraph and sleep log.

Inclusion Criteria:

- Inclusion criteria for each participant are as follows: Must be between 18 and 100
years old

- No significant psychiatric conditions based on the The Mini International
Neuropsychiatric Interview 6.0 (MINI 6.0)

- Not currently using narcotics, psychotropic or hypnotic medications and willing to
refrain from using these medications during the course of the study

- Limits caffeine consumption to less than or equal to 2 coffee servings, or equivalent
per day before 12 noon

- Limits alcohol intake to 7-drinks per week and less than or equal to 1 drinks on any
one night

- Must adjust alcohol consumption to 7-drinks per week and less than or equal to 1 drink
on any one night for at least two weeks before study begins, and must not consume
alcohol later than 8pm

- Naps less than or equal to 1-hour per week according to subjective report

- For at least 3 times a week a minimum of 30 minute sleep latency or 30 minutes of
total nighttime awakening due to subjective elevated noise.

Exclusion Criteria:

- Exclusion criteria for each participant are as follows: Younger than 18 years old or
older than 100 years old

- Significant psychiatric conditions based on the The Mini International
Neuropsychiatric Interview 6.0 (MINI 6.0)

- Currently using narcotics, psychotropic or hypnotic medications and not willing to
refrain from using these medications during the course of the study

- Does not limit caffeine consumption to less than or equal to 2 coffee servings, or
equivalent per day

- Does not limit alcohol intake to 7-drinks per week and less than or equal to 1 drinks
on any one night , consumes alcohol later than 8pm

- Naps more than 1-hour per week according to subjective report

- Not at least 3 times a week at least 30 minute sleep latency or not 30 minutes of
total nighttime awakening due to subjective elevated noise