The impact of using electronic devices before bed on sleep quality

This survey is designed to examine how using electronic devices before bed affects people's sleep quality. We guarantee that we will not disclose your personal information.Thank you so much for your participation.
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1.
Do you have the habit of using electronic devices before bed?
yes
no
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2.
Have you ever had trouble going to sleep because you were playing with electronic devices?
yes
no
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3.
Do you think using electronic devices before bed interferes with your sleep?
yes
no
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4.
How long do you usually use electronic products before going to bed?
＜30 minutes
30 minutes~1 hour
1 hour~2 hours
＞2 hours
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5.
How long does it usually take you from lying down on the bed to actually falling asleep?
＜15 minutes
15 minutes~30 minutes
30 minutes~1 hour
＞1 hour
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6.
How tired do you feel in the morning after getting up?
Not at all
A little bit
Moderately
Extremely
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7.
How often do you wake up easily during sleep at night?
Hardly ever
Occasionally
Frequently
Very often
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8.
Which electronic devices do you often use before bedtime?【多选题】
Smartphone
Computer
Television
Game console
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9.
What are your main purposes of using electronic devices before bedtime?【多选题】
Scroll short videos
Watch dramas and videos
Social chat
Play games
Study and work
Listen to music
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10.
Which sleep problems have you experienced due to pre-bed electronic device use?【多选题】
Prolonged sleep onset
Light sleep and frequent dreams
Frequent nighttime awakening
Difficulty getting up in the morning
No obvious sleep problems
Others：
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