Can Fragrance Actually Improve Sleep? I Tracked Mine for 40 Days to Find Out

I'm a beauty editor, so it's part of my job to trial and document the eye creams that blast away dark circles and the serums that revive dull skin. While these lotions and potions get us to the finish line, everyone knows that the real driver behind bright under-eyes and plump skin is adequate sleep.

While I have a seemingly endless number of products that can place a Band-Aid over a bigger issue, I know enough about the human body to recognize that I'll never achieve the complexion, energy, or metabolism I desire until my sleep quality improves. But as someone who—thanks to anxiety, stress, and the inability to unplug—has struggled with sleep for the past 10 years, achieving a solid eight hours of sleep has been my white whale. That was until I recently decided to beautify my wind-down routine with a small fragrance experiment that made a sizeable impact.

Aromatherapy is nothing new to the world of wellness. Its roots date back to the aromatic herbal practices of ancient Egypt, late Neolithic China, and 4th-century BCE India, but as the category continues to expand with modern-day technology, products like supercharged body oils and electric diffusers are being implemented everywhere from spas to homes to calm stress, boost serotonin, and, in some cases, improve sleep quality. In the desperate search for something to inspire better rest that wasn't another nightmare-causing melatonin pill, I came across Drift's Rest & Relax Home Scent Diffuser—a neuroscience-backed fragrance designed to calm the body and mind before bed for deeper, calmer sleep. Forget the night creams; this sounded like exactly the beauty step my nighttime routine was missing.

About Drift's Home Scent Diffuser in Rest & Relax

If you're worried about emitting toxins into the air, fear not—Drift's fragrances are made without phthalates, parabens, or harsh chemicals, and the brand makes a point to call them out as pet- and child-safe.

I tracked my sleep with an Oura Ring for 40 days while filling my bedroom with this functional fragrance, and the results don't lie.

How It Works

"From a neurological standpoint, smell is unique among the senses because of how directly it connects to the brain,” triple-board-certified neurologist Leah Croll, MD, previously told Who What Wear. Croll describes the short distance between the brain and nose as an expressway that no other sense has access to, directly linking smell neurons to the brain's emotional and memory centers. This explains why buried memories are suddenly resurrected with a whiff of a nostalgic scent and how fragrance can truly change your emotional and physical state.

"Yes, calming scents can help sleep, and lavender has the best evidence," double-board-certified psychologist and clinical sleep specialist Michael J. Breus, PhD, tells WWW. "It seems to work through the olfactory system and brain pathways involved in relaxation, helping some people fall asleep faster, sleep more deeply, and feel that their sleep quality improves." Randomized trials recorded by the National Library of Medicine have, too, found that overnight inhalation of lavender essential oils can shorten latency, quell anxiety, and promote deeper sleep.

While I've relied on lavender-infused pillow sprays to lull me to sleep in the past, the scent fades within a few hours and requires reapplication when I, like clockwork, awake periodically throughout the night. This diffuser, on the other hand, plugs into the wall and emits the soft, lavender-sweet aroma into the room—gentle enough not to irritate sensitive noses but consistent enough to wrap yourself up in it from wind-down to wake-up.

"The scent itself appears to influence brain systems involved in calming and sleep regulation," says Breus. "More specifically, lavender improves sleep through olfactory perception and GABAergic neurons of the central amygdala." In layman's terms, it triggers the wind-down sensors in your brain once you enter your room after a long day of work, Pavlov conditioning your body to go into relaxation mode when Rest & Relax's vanilla, chamomile, and lavender scent reaches your nose.

The Results

After 24 hours of wearing my Oura Ring and plugging the diffuser into my bedroom wall, I was greeted with my first Sleep Score, which clocked in at nearly six hours of sleep (yes, the one with the pale-red warning font) and a 65/100 rating. The app showed that I achieved a meager 37 minutes of deep sleep—which is, unfortunately, just another Tuesday in my household—and that my latency was four minutes, indicating overtiredness. In short, my wind-down routine needed some TLC.

With consistent use, my Sleep Score skyrocketed to 87 in just two weeks. All categories, from hours of sleep (over eight!) to REM and deep sleep, improved dramatically—with deep sleep advancing by almost an hour. Could it be that I was suddenly hypervigilant of my sleep habits, given my every move was being recorded by a chunky silver ring? Maybe. But does it change the fact that I was now inhaling a relaxing lavender-and-chamomile concoction as I settled into bed with a good book and silk sheets? Not a bit.

It's worth noting that the few nights I was away from my diffuser in a hotel room, my restlessness came back with a vengeance, and my Sleep Score wasn't shy about showing it. But after five weeks of testing the diffuser, my sleep quality has continued to stay in the good graces of my Oura app, with my deep sleep (the stuff that matters) showing the most improvement.

Is it worth it?

I won't lie—the sleep results from my Oura Ring were shocking. Despite a handful of stressful days at work, early-morning workouts, and late-night beauty events, my sleep quality and deep sleep improved significantly while using this diffuser. While I still believe that a consistent bedtime and healthy wind-down routine (e.g., no doomscrolling or late-night glasses of wine) make a significant difference, vaporizing lavender in your sacred space is a science-backed benefit.

The Drift Home Scent Diffuser Starter Kit comes in at $36, including a reusable plug-in diffuser and a single scent pod. Each pod lasts for 30 days, and each refill order ($35) comes with two refills, giving you two more months of use. One year of use will set you back $246, but really, can you put a price on better sleep?

The Wind-Down Routine

I'm a strong believer that half the battle is your wind-down habits, and Breus would have to agree. "A good wind-down routine is really about giving your brain and body consistent signals that the day is over and sleep is coming," he states. The sleep doctor recommends you follow these five simple steps:

• Start an hour early: "Sixty minutes before bed, stop work, problem-solving, and anything emotionally activating. You want to reduce cognitive arousal before your head hits the pillow."
• Set the mood: "Lower light exposure, especially bright overhead light, to allow your natural melatonin production to rise."
• Run the fan: "Keep the bedroom cool, and consider a warm shower or bath. Warming the skin can actually help the body release heat afterward, supporting the natural drop in core body temperature that accompanies sleep."
• Practice a routine: "Do something relaxing and predictable. Reading, stretching, breathing exercises, meditation, calming music, or even lavender aromatherapy can become a conditioned cue for sleep."
• Empty your head: "Write down your to-do list, worries, or anything you're trying to remember. The goal is to get it out of your head before you get into bed."

More Products That Improve Sleep Quality