2. I live on the 18th floor of a 23-story apartment, and the noise of the city life outside sounds like low frequency.
3. When you lie in bed and put your head on the pillow, you can hear a lot of hum, the sound of cars outside, etc.
4. I woke up easily because it was too bright.
5. You can sleep only when you block all lights in the room.
6. Black wood locks were placed on the windows to block light, and double blackout curtains were installed.
7. When light from the living room, etc., seeps in through the cracks in the door, I can see all the light even when I close my eyes. It bothers me and makes it difficult for me to sleep.
8. It doesn’t matter if it’s a little cold, but if it’s even a little hot, I can’t sleep.
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