How to keep the room dark for sleep?

To keep your room dark for sleep, Andrew Huberman emphasizes several key strategies:

1. Use Blackout Curtains: They block outside light from entering the room, ensuring darkness during sleep 1.
2. Dim the Lights: In the evening, dim your lights at least one hour before bed. This reduces light exposure and signals your brain to prepare for sleep 1.
3. Eye Mask: If light still penetrates or if you have thin eyelids, wearing an eye mask can help maintain darkness 2.
4. Red Light Use: In certain circumstances, having dim red light in the room can be beneficial as it doesn't affect your circadian rhythm as much as other light colors 3.
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     1

     Sleep Hygiene Essentials

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     2

     Optimizing Sleep

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     3

     Light and Sleep

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Implementing these adjustments can significantly improve your sleep environment by reducing light-induced disturbances.