Blissful Rest

Can You Leave an Oil Diffuser On While You Sleep?

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Oil diffusers have been a popular home device ever since they were first invented, but you may have heard that some people are a little nervous about using one. 

The primary concern with leaving an oil diffuser on while you sleep is that you may become overexposed to the essential oils used. As you may be aware, essential oils are dangerous to consume, and inhaling too much can lead to irritation of the eyes and skin. 

So the question, can you leave an oil diffuser on while you sleep, can be answered with a hard no. But if you still want to get the most out of your diffuser, there are precautions you can take to ensure you won’t risk overexposure.

In this blog, we’ll go over safe ways to use a diffuser at night. You won’t be able to keep it on at all times, but it will still provide all the essential oils you need. 

Can You Leave an Oil Diffuser on While You Sleep?

The easiest way to avoid getting overexposed to essential oils is to get a diffuser that has an auto shut-off feature that turns the machine off if it’s been running for a long period of time. 

Fortunately, most oil diffusers these days come with this feature built-in because the dangers of overexposure were too great. No one wants to buy a product that could wind up leaving them with horribly irritated eyes and skin. 

But many people are still using diffusers that are a few years old.  If your oil diffuser does not have such an option, one way of avoiding this issue is simply to use the diffuser 30 minutes prior to your bedtime. This will ensure you’re getting the most out of the essential oils without any of the risks. 

With this second option, it’s recommended that you only use high-quality essential oils. These should last through the entire night and provide restful sleep. 

So can you leave an oil diffuser on while you sleep? It simply depends on how modern your particular model is.

Can an Oil Diffuser Catch Fire?

Beyond the dangers that overexposure to essential oils brings, people also are often worried that their device can overheat and present a fire hazard. This really is only a concern if you’re using a heat-powered electric machine.  

Other people opt for oil burners, which can even be riskier due to using an open flame. Leaving an oil burner on all night is even more dangerous than a diffuser, as it could easily fall if not properly situated. 

Getting a cold air nebulizing diffuser is also a great way to avoid this hazard. Cold air machines go around the safety concerns that come with heat diffusers. They’re also notably better at producing high-quality scents. 

Top Essential Oils To Help You Sleep

Now that you know how to safely use the oils in your diffuser to help you sleep, it’s time to look at some of the best natural sleep aids on the market. Each essential oil is carefully assembled, particularly if they’re high-quality, to produce the best and richest beneficial scents for your overall health.

But knowing which are best for certain times of day can be a little difficult. We recommend doing a little experimenting to find out what scents you like the most and which actually help you throughout the day and even as you drift off into sleep. 


Known as the Swiss Army Knife of essential oils because of its one-size-fits-all ability, studies have shown lavender is proven to relieve stress and anxiety as well as help with those pesky sleep-related problems. Even those with light cases of insomnia speak highly of its abilities. 

Quiet Blend

To be perfectly honest, the names of some of the ingredients of the quiet blend are not well known in the West outside of Geranium. Ylang Ylang, Amyris, and Clary Sage combine with the Geranium in ways that may be hard to explain, but they certainly are relaxing. 

Clary Sage, in particular, is one that is known to help fight insomnia by helping to clear your head. Like any other sage that you burn in your home to purify the air, Clary Sage purifies the mind.


Bergamot, for those unfamiliar, is a citrus fruit. The oil comes from the rind of the fruit. So much like an orange, it’s both refreshing and relaxing at the same time. Though there’s no scientific data, people have reported anecdotally that it is excellent for bringing your emotions in harmony. 

Peppermint and Eucalyptus

These oils, strangely, are considered to be stimulant scents; fragrances that get you active and ready to work. But they’re also recommended for sleep as well, especially for those suffering from congestion that prevents a good night’s rest. Both peppermint and eucalyptus clear the nasal passages, so that also means you’ll cut back on snoring. 


It’s as old-fashioned an oil as they come, dating back to Biblical times. The significance of Frankincense in the Bible carries a lot of weight, but it’s proven it’s right to a place in history. Frankincense is loaded with sleep-aid properties and nutrients. 

For the most part, it’s safe to leave a diffuser on and fall asleep. It may happen by accident every once in a while – the scent of the oils just overtakes you and you drift off into sleep. While older machines do run the risk of causing skin and eye irritation, the newer models are mostly prepared for such risks. 

If, however, you’re using an older machine or have one without an auto shut-off feature, then you can safely run it for a half-hour before you go to bed and still get what you need out of the machine for the evening. 

But if you are using an oil burner, it’s vital that you extinguish it prior to going to bed. Leaving an oil burner on all night is as dangerous as falling asleep smoking a cigarette. 

Otherwise, diffuse away, so long as it’s done responsibly.