Light at Night Survey
Information Sheet

I, Michael Cleary- Gaffney am a doctoral student at Maynooth University. I would like to take this opportunity to thank you for considering participating in this study carried out by Michael Cleary-Gaffney and supervised by Professor Andrew Coogan. The decision is entirely voluntary.  If you decide to participate, please make sure you fully understand what is required. If you feel uncomfortable you can withdraw at any time during the study without any questions being raised. To withdraw simply exit this screen. Your responses will be deleted and not be recorded. If you wish to participate simply complete the survey and press submit. Once you do this your responses will be made anonymous.

Purpose:
The aim of this research is to examine whether light at night; to which we are routinely exposed to in our home-settings has an effect on the quality of our sleep and whether this has possible implications for our mood and general psychological well-being.

What do I have to do?
You must be 18 years of age or older to take part. If you decide to take part. You will be required to complete four questionnaires. Also will be required to provide your personal EIRCODE address. (a link is provided if  you need assistance to locate your EIRCODE).This is to classify whether you live in an area which has high levels of light exposure (e.g. street lighting). The multiple-choice survey should only take approximately 20 minutes to complete.

Who will have access to information about me?
The data generated from this research will remain anonymous and all data will be stored on the researchers computer which will be strictly password protected. Any identifying information (e.g. EIRCODE address) will remain confidential and will not be disclosed to any other parties. You will not be identified in any report or publication resulting from this survey.
 
How will the information collected by the survey be used?
Data collected by the survey will be aggregated, and summaries of the results will be included in a research thesis and publications. Personal identifiable information such as your Eircode/street address will be electronically deleted on a secure server after analysis. Once you submit your responses, your data, will become anonymous. As a result it will not be possible to request to view your data or withdraw your data.

What if there is a problem?
If you have concerns please contact the researcher;  michael.clearygaffney@nuim.ie or andrew.coogan@nuim.ie


Once again, thank you for your consideration to participate in this research.
Please follow the instructions below if you are willing to progress in this research:

By selecting the consent button below, you are agreeing that:
• You have read and understood the information provided above.
• You have been given the opportunity to ask any questions that you may have about this research and if asked, they have been answered satisfactorily,
• You are taking part in this research study voluntarily (without coercion).
• Once you submit your responses you will be unable to withdraw your data.
• You are 18 or over.
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Do you consent that you are fully aware of the nature of this study and that I am both over 18 years of age and voluntarily completing this questionnaire. *
Light at Night Questionnaire
The following questionnaire is related to assessing your light at night exposure, lighting habits at night and your perception of these lighting habits. Your answers should indicate the most accurate reply for the majority of nights in the past month. Please answer all questions.  
Where do you live? *
What is your age? *
What is your sex? *
What is your Eircode (this can be found https://finder.eircode.ie/#/) or address? *
What type of house do you live in? *
Where is your bedroom located? *
Do you sleep with a light on (e.g. main light or bedside light)? *
At what time do you usually turn the main light off in your bedroom before you go to sleep? *
When both your main bedroom light and bedside lights are off would you consider your bedroom to be bright? *
With all lights turned off, would you consider your room to be *
If you awake from sleep during the night do you turn on the light? *
If so, for how long? *
Do you have blinds/curtains on your windows? *
If so, how effective are these blinds/curtains in preventing light at night from trespassing into the bedroom? *
Does artificial outside light (i.e. street lights, traffic lights, headlights etc.) enter the bedroom when you are sleeping? *
Do you feel that these outdoor light sources at night effects your ability to fall asleep? *
What is the colour of the dominant light (outdoor light) in the vicinity of your house? *
Do you feel that light at night interferes with your sleep quality after falling asleep? *
Are there other factors that are affecting/disrupting your sleep at night? Please specify. *
In your bedroom, what are the most prevalent light emitting sources? *
Do you usually have lights on outside your bedroom door which illuminate your bedroom (i.e. bathroom or landing light)? *
Before sleep, do you use electronic devices in bed (i.e.mobile phone, tablet, ebook, personal computer)? *
How often do you use these devices? *
Do you check/use these electronic devices within an hour of attempting to sleep? *
After using these electronic devices, how long does it usually take you to fall asleep? *
Do you feel that use of these devices affect your sleepiness/quality of sleep in a negative manner? *
If you awake from sleep during the night, do you check an electronic device (i.e. phone, tablet, personal computer)? *
If you awake from sleep during the night, how often do you check your device upon awaking? *
To what degree do you think that light at night exposure before sleep effects the quality of your sleep? *
Does any particular noise annoy you during the night? *
At night, what are the major sources of noise pollution in your home? *
Do the above noise disturbances negatively impact on your ability to fall asleep? *
Do the above noise disturbances result in you awakening from sleep during the night? *
Do you think that the above noise disturbances negatively impacts on the quality of your sleep? *
In your bedroom, are you sensitive to environmental noise? *
Do you feel that noise at night affects you physically or mentally? *
Pittsburgh Sleep Quality Index (PSQI)
The following questions relate to your sleep habits during the past month only. Your answers indicate the most accurate reply for the majority of days and nights in the past month. Please answer all questions.
During the past month, when have you usually gone to bed at night? (i.e. USUAL BED TIME) *
During the past month, how long in minutes (in minutes) has it usually taken you to fall asleep each night? (i.e. NUMBER OF MINUTES) *
During the past month, when have you usually gotten up in the morning? (i.e. USUAL GETTING UP TIME) *
During the past month, how many hours of actual sleep did you get at night? This may be different than the number of hours you spend in bed). (i.e. HOURS OF SLEEP PER NIGHT) *
During the past month, how often have you had trouble sleeping because you cannot go to sleep within 30 minutes *
During the past month, how often have you had trouble sleeping because you wake up in the middle of the night or early morning *
During the past month, how often have you had trouble sleeping because you have to get up to use the bathroom *
During the past month, how often have you had trouble sleeping because you cannot breathe comfortably *
During the past month, how often have you had trouble sleeping because you cough or snore loudly *
During the past month, how often have you had trouble sleeping because you feel too cold *
During the past month, how often have you had trouble sleeping because you feel too hot *
During the past month, how often have you had trouble sleeping because you had bad dreams *
During the past month, how often have you had trouble sleeping because you have pain *
Are there other reasons which have resulted in you having trouble sleeping? If so, please describe *
Based on your above reason, How often during the past month have you had trouble sleeping because of this? *
During the past month, how would you rate your sleep quality overall *
During the past month, how often have taken medicine (prescribed or "over the counter") to help your sleep *
During the past month, how often have you had trouble staying awake while driving, eating meals, or engaging in social activity? *
During the past month, how much of a problem has it been for you to keep up enough enthusiasm to get things done? *
If you have a roommate or bed partner, ask him/her how often in the past month have you had loud snoring
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If you have a roommate or bed partner, ask him/her how often in the past month have you had long pauses between breathes while asleep
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If you have a roommate or bed partner, ask him/her how often in the past month have you had legs twitching or jerking while you sleep
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If you have a roommate or bed partner, ask him/her how often in the past month have you had episodes of disorientation/confusion during sleep
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If you have a roommate or bed partner, ask him/her how often in the past month have you had other restlessness factors while you sleep
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