DRUG-FREE REGULATION
Non-invasive and non-addictive. Helps calm autonomic overactivation linked to poor sleep, anxiety, and recurring headaches.
Sleep better, starting today.
- 30-night risk-free
- Free shipping & returns
- Clinically backed · drug-free
AS SEEN IN
Real-world scale
10,000+
Cumulative research hours
50+
Research institutions
2M+
Stimulation sessions
50+ institutions use our research-grade taVNS system · Not intended for clinical diagnosis or treatment.
How ZenoWell vagus nerve stimulation supports sleep
taVNS helps the body move from alert mode into a calmer state for more restorative sleep.
- Low vagal tone
- Body stays alert
- Sleep fragments
- taVNS restores balance
CONDITION-SPECIFIC MODES
Purpose-built protocols for sleep, stress, recovery, pain, focus, and digestion — never one-size-fits-all.
OFFLINE · PORTABLE · NO SUBSCRIPTION
Works without a phone or membership. Compact and discreet for commutes, workdays, and bedtime.
CLINICALLY MEASURABLE
100+ participants across controlled research, quantifiable neural change, and evidence across multiple chronic-health applications.
Whatever keeps you awake, ZenoWell meets you there
Different sleep patterns call for different support. Start with the challenge that feels most like yours.
RACING MIND
Quiet a mind that won’t switch off
Help your nervous system shift from alert to rest before bed.
NIGHT WAKING
Support more continuous sleep
Help your nervous system settle after waking during the night.
LIGHT SLEEP
Support deeper, more restorative rest
Build a calmer nighttime routine for more settled sleep and better mornings.
Clinical evidence for better sleep.
JAMA NETWORK OPEN · RANDOMIZED CLINICAL TRIAL
Transcutaneous Auricular Vagus Nerve Stimulation for Chronic Insomnia Disorder
KEY FINDING
Compared with sham stimulation, taVNS produced a clinically meaningful improvement in sleep quality after 8 weeks—and the benefit persisted through week 20.
- 72
- adults randomized
- 8 weeks
- active treatment
- 20 weeks
- benefit sustained
Additional sleep studies
01 · CHRONIC INSOMNIA
Transcutaneous auricular vagus nerve stimulation (taVNS) improves sleep quality in chronic insomnia disorder: A double-blind, randomized, sham-controlled trial
02 · INSOMNIA
Combined transcutaneous auricular vagus stimulation (taVNS) with 0.1 Hz slow breathing enhances insomnia treatment efficacy: A pilot study
03 · SLEEP & AUTONOMIC FUNCTION
Preliminary evidence of transcutaneous vagus nerve stimulation effects on sleep in veterans with post-traumatic stress disorder
04 · SLEEP DISTURBANCE
Transcutaneous auricular vagal nerve stimulation improves functional dyspepsia with sleep disturbance via enhanced vagal activity: a randomized controlled trial
How it works
1
Connecting the
Earpiece to the
Controller.
Earpiece to the
Controller.
2
Activate
Luna.
Luna.
3
Moisten the earpiece
with gel or water.
with gel or water.
4
Place the earpiece in
your left ear.
your left ear.
5
Select a mode.
6
Adjust the intensity,
Feel comfortable tingling
in the ear.
Feel comfortable tingling
in the ear.
The best sleep you've ever had
Shop ZenoWell →
Based on current study summaries. Link each result to its verified source.
Choose your sleep support
ESSENTIAL
Vita Mini $239
Simple, app-free support for sleep and refresh.
Simple, focused everyday support
2 MODES
Sleep + Recovery
30
Intensity levels
20 MIN
Per session
RECOMMENDED
Luna Plus $499
AI guidance that tracks patterns and progress.
Guided routines and long-term tracking
AI COACH
Adaptive guidance
HISTORY
Session trends
PREDICT
Trajectory
FULL SPECTRUM
Luna $409
More modes for different moments of your day.
More ways to support your daily routine
ALL MODES
Full coverage
EXTENDED
Battery
30
Intensity levels
Why ZenoWell feels different
ZenoWell taVNS
Designed for everyday nervous system support
- Comfort-led ear fit
- Adjustable stimulation settings
- Drug-free · no subscription
Other VNS devices
Stimulation-first devices
- Fit varies by design
- Features vary by device
- Drug-free
Sleep products
General sleep support
- Often focused on general sleep support
- Generalized approach
- Repeat purchase varies
Sleep medication
Clinician-directed treatment
- No wearable component
- Clinician-directed dosing
- Pharmacological
Real reviews. Real sleep experiences.
“90 sleep score after the first successful session.”
“Simple controls—and asleep within about 20 minutes.”
“Falls asleep, and back asleep, in about 20 minutes.”
“Relaxation plus tracking made the routine feel reassuring.”
EXPERT VOICE
“Different sleep complaints reflect different activation patterns. The right protocol should match both the symptom and the time it appears.”
ZenoWell Scientific Advisory Board
Expert voices, grounded in evidence.
Watch clinicians, researchers, and specialists share their perspective on nervous-system regulation.
Your sleep problem, your protocol
CAN’T FALL ASLEEP
Wind-down protocol
For racing thoughts and long sleep onset.
WAKE DURING THE NIGHT
Sleep continuity protocol
For repeated awakenings and difficulty returning to sleep.
STRESS-DRIVEN INSOMNIA
Downshift protocol
For an alert body and a mind that will not switch off.
LIGHT, UNREFRESHING SLEEP
Deep-rest protocol
For fragmented sleep and waking without recovery.
Start low and adjust to a clear but comfortable sensation. Your recommended settings can be personalized after the assessment.
Common questions
How quickly will I notice a difference?
Everyone responds differently. Some people notice a calmer, more relaxed feeling during or after the first few sessions, while changes in sleep may take more consistent use. We recommend using ZenoWell regularly and observing your sleep patterns over time.
Is there any side effect?
taVNS is generally well tolerated when used as directed. You may feel mild tingling around the ear during stimulation. Temporary redness, irritation, headache, or dizziness may occasionally occur. Stimulation should always feel noticeable but comfortable. Stop use if you experience pain or persistent discomfort.
Can I use it with sleep medication or melatonin?
ZenoWell is a drug-free wellness device and is not intended to replace medication or medical treatment. If you are taking prescription sleep medication or are under medical care, consult your healthcare professional before adding taVNS to your routine. Do not change or stop medication based on ZenoWell use alone.
Who should not use this device?
Do not use ZenoWell if you have a pacemaker, ICD, or other life-sustaining implanted electronic device, epilepsy or a history of seizures, severe heart disease or a high risk of arrhythmia, or if you are under 18. If you are pregnant or have an existing medical condition, consult a healthcare professional before use.
What if I wake up in the middle of the night?
If you wake during the night, focus first on keeping your environment calm and avoiding bright light or stimulating activities. ZenoWell can be incorporated into your nighttime routine according to the recommended usage guidelines and daily use limits.
How long does shipping take?
Shipping time depends on your destination and the shipping method selected. You’ll see the available shipping options and estimated delivery time during checkout.
What is the return process like?
ZenoWell devices come with a 30-day trial period. If the device is not right for you, contact our support team within 30 days of receiving your order and we’ll guide you through the return process. The 30-day trial applies to the device and earpiece; promotional gifts are excluded.
How long does the battery last?
Battery life varies by ZenoWell model and usage settings. You can find the battery specifications for each model on its product page.
Tonight can feel different.
Start a personalized, drug-free sleep protocol — backed by a 30-day money-back guarantee.
Start your 30-day sleep trial →
Clinically backed · No pills · No habit-forming risks
