Is Green Light in the Bedroom Good for Sleep?

green light for better sleep

There is a connection between the internal clock of our bodies and the light we are exposed to. You will have noticed that you fall asleep easier when it is darker outside and awaken during the daytime. 

It has been found that not just light, but its colour can also affect our circadian rhythms. Our waking up during the day time and sleeping at night is due to the circadian rhythm. It is our response to light and darkness.

The Effect Of Green Light on Sleep

While it was earlier felt that blue light had an adversely affected sleep as it suppressed melatonin which led to increased wakefulness. REM or rapid eye movement sleep was affected if one used IPads to read as opposed to normal books. The ones using the iPad had a tougher time with sleep.

It was found in a study by Harvard that when a group was given equal exposure to the blue and green light at 6.5 hours each. The results showed that those who were exposed to blue light faced twice the degree of melatonin suppression compared to green light. 

The intensity of the light also matters with studies showing that you would experience better sleep if dimmer or cooler light was used in the evening and a brighter colour used during the day. 

What Would be The Best Bedroom Colour For Sleep

Colours have an impact on our mood. Bright and vibrant colours tend to put us in a cheerful mood which also impacts our sleep. 

If we are in a stressful mood, it will be difficult for us to sleep. On the other hand, if we are calm and relax, it would help our sleep.

Here are some popular colours and their impact on sleep:


In some cases, it has been proved that blue has a calming effect and leads to better sleep. The ganglion cells in your retina respond better to blue, leading to a lower heart rate and blood pressure. 

The colour blue has led to an average sleep duration of 7 hours and 52 minutes in a study conducted in the UK. Another survey also reported that the participants felt more upbeat and positive with this colour in their bedrooms.


Participants whose bedroom walls were yellow also had a sound sleep clocking 7 hours and 40 minutes of sleep every night.


Respondents who had green-coloured bedroom walls also experienced sound sleep with a duration of 7 hours and 36 minutes. They also felt more energetic and positive compared to others


Those with silver walls in their bedrooms did not fare too badly either. Respondents were able to get 7 hours and 33 minutes of sleep. 


The colour orange is not only relaxing, but it is also said to help overcome indigestion. People having the colour orange in their bedrooms had 7 hours and 28 minutes of sleep.

What Colours Should I Avoid For My Bedroom Walls

Here are some of the least popular colours for sleep:

The colours which you should avoid or be your last preference should be the following which resulted in less than 7 hours of sleep accordingly to a survey:


The colour purple, according to the respondents, has resulted in the least number of hours of sleep at 5 hours and 56 minutes. While it leads to mental stimulation and leads to higher creativity, it also leads to disturbed sleep.


Grey is also a depressing colour which does not inspire anyone. Respondents with grey walls were able to sleep for only 6 hours and 12 minutes. 


Brown is not a very comforting colour, and it makes you feel drab and gloomy. Instead of feeling calm, it makes you feel restless.


You will feel a surge in your blood pressure with this colour. It tends to make you feel more anxious and leads to a loss of sleep. 

Points to Consider While Painting Your Bedroom 

There are some basic rules you need to keep in mind when painting your bedroom:

Light and muted shades:

Whatever your final choice of colour, keep in mind that lighter and pastel shades will help your sleep. Choose earthy tones or skin colour tones. You will feel calmer and feel a sense of positive energy. Bolder or brighter colours will trigger your energy and not allow you to relax. Your bedroom needs a serene finish.

Use flat paint

It is advisable to choose a flat colour as opposed to a glossy or eggshell finish. When the wall has a glossy finish, it tends to reflect more light. Flatter finishes tend to absorb light better and give you a softer feel. 

The accent wall should have a complementing colour

The colour of the accent wall differs from the other walls of the room. The colour of this wall should complement the other walls and not contrast them. Use the colour wheel to choose a parallel colour. 

Enjoy Better Sleep With Green Light

When it comes to exposure to light while sleeping, the colour green scores over the others. Green is synonymous with nature, and it leads to feeling productive and alert. It has a calming effect on you. 

While it does promote wakefulness and disrupts the circadian rhythm, the impact is not as strong as blue and white light. The long-term damage is the least compared to blue and white light. 

With improved skin quality and anti-ageing properties, green light certainly has a positive impact on you. 

For a healthier sleep cycle and improved health, switch to green light.