Green is the color of nature, calm and comfortable. If the bedroom walls or bedding are green, it will be conducive to physical and mental rest. Blue has the functions of calming the nerves and lowering blood pressure, and is considered to be the most suitable color for sleeping. Purple is dull, sacred and solemn, and is considered to have a strong hypnotic effect.

The brightness of color can also affect sleep. Generally speaking, too bright colors are not helpful to sleep, especially white is the most destructive color to sleep. On the contrary, some elegant and subtle colors, such as light blue, light green, light yellow and light red, are suitable for sleeping.

In addition, another visual factor that affects sleep is the material. Satin, glass, electroplated furniture and lamps are not suitable for bedrooms. Linen and other materials with weak reflection and light absorption are soft and comfortable, which have been proved to be suitable for sleeping environment.

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