Replacement wings for NextSense Smartbuds. One pair (2 wings).
Replacement Wings for Smartbuds
Most sleep wearables just track. Smartbuds actually deepen your sleep. Using clinical-grade EEG sensors, they read your brainwaves in real time and play gentle sound pulses tuned to boost your slow waves — the deepest, most restorative stage of sleep. Built ultra-comfortable for all-night wear, even for side sleepers.
My husband snores like a freight train. I tried earplugs, white noise machines, sleeping in another room. NextSense is the first thing that's actually worked.
I’m a side sleeper and these are the only earbuds I can wear all night without my ear hurting. Game changer.
My old sleep tracker just told me how badly I slept. Smartbuds actually do something about it. My deep sleep is up almost 40% since I started wearing them.
I’ve tried every sleep gadget. These are the first ones that actually changed my mornings. I wake up clear-headed instead of foggy.
I travel weekly and these have replaced my regular earbuds, sleep mask, and white noise app. One device, way better sleep on the road.
- Smartbuds + wireless charging case
- 3 ear tip and wing sizes for a secure sleep fit
- Free US shipping + 1-year warranty
30-day money-back guarantee
How do Smartbuds work?
Who makes Smartbuds?
What's in the box?
How are Smartbuds different from AirPods?
Is my brain data private?
What if they don't work for me?
Are Smartbuds comfortable for side sleepers?
Can I pay with my HSA or FSA?
Answers to important questions
Submit a question or concern through this form
Contact our customer support line: 888-898-8068.
EEG & Brain data
What is EEG and why does it matter?
EEG (electroencephalography) measures electrical activity in the brain. It's the gold standard for sleep science, allowing Smartbuds to detect sleep stages and optimize audio in real time—unlike wrist trackers that only infer sleep from movement or heart rate.
Can Smartbuds read my thoughts?
No. EEG detects patterns like sleep depth or transitions—not thoughts, memories, or emotions. Your mental privacy is deeply respected.
Is my brain data private?
Yes. We never sell or share your data. Data sharing is off by default, and all information is encrypted, stored securely, and anonymized before leaving your device. You can delete your data anytime from within the app.
What is slow-wave sleep?
Slow-wave sleep, also called deep sleep, is the most restorative stage of sleep. It's when your brain produces slow, high-amplitude delta waves. This stage is essential for waking up refreshed.
Sounds
Can sound hurt my sleep?
It can—if it's the wrong kind. Jarring, unpredictable, or overly stimulating audio can disrupt your rest. That's why Smartbuds use gentle soundscapes specifically designed to support healthy sleep. When personalized and timed right, sound can actually enhance your sleep rather than interrupt it.
What is slow-wave enhancement?
Slow-wave enhancement is a technique that uses precisely timed sound (soft pink noise) to nudge your brain waves into their most restorative rhythm. This the enhances the quality of your sleep without waking you up.
Care & Cleaning
How do I clean my earbuds and sleeves?
Use a cloth dampened with bottled water to gently clean the surface. Let everything dry completely before using again. Clean weekly for best performance.
How do I replace my wings and/or tips?
Smartbuds' wings and tips require regular replacement to continue collecting brain data. Always handle them gently and even if you're only swapping out wings, you’ll need to take the tip off first.
Step 1: Remove the tip. Hold the earbud firmly in one hand. With the other hand, pinch the silicone tip near its base and pull it straight off using a slow, steady motion. Don’t twist or yank—these components are delicate and house important sensors.
Step 2: Remove the wing. Gently peel the wing away from the body of the earbud, starting at one edge and working around. It should come off with light, even pressure—no need to force it.
Step 3: Attach the new wing. Align the new wing so that the cutout fits neatly around the base of the earbud. Stretch the wing gently into place and press it down so it sits flush and snug against the earbud.
Step 4: Attach the new tip. Align the new tip with the nozzle of the earbud. Press it on firmly until it feels secure—you may hear or feel a soft click when it’s in place.
Are Smartbuds waterproof?
No. Avoid rain, heavy sweat, and any moisture exposure. Do not submerge them in water or wear them in the shower.
Apps & Features
What is sleep routine?
Your sleep routine is the window when you aim to be asleep—from your usual bedtime to your usual wake-up time. Setting it helps us customize your experience, like reminding you to charge your Smartbuds before bed. It doesn’t set an alarm or prevent you from starting a sleep session at a different time. Many users also find it helpful for setting sleep goals and keeping a consistent sleep schedule.
Submit a question or concern through this form
Contact our customer support line: 888-898-8068.
Technical Specifications
Sensors & Measurement
Electroencephalography (EEG):
2, 24-bit channels sampled at 1000 Hz
Soft Flexible Sensors:
6 clinical-grade dry-contact surface electrodes with Tecticoat
Sensing Locations:
Ear Canal, Concha Cavum, and Antitragus
Body Motion:
6-axis inertial movement measurement from accelerometer & gyroscope
Audio & Stimulation
Slow Wave Stimulation:
EEG-guided auditory stimulation
Audio Playback:
48kHz / 16-bit
Audio Driver:
6 mm Dynamic Driver, frequency range: 20 Hz – 20 kHz
Battery & Charging
Battery Life (Smartbuds):
Up to 9 hours of streaming and stimulation / on-devide audio
Battery Life (Charging Case):
Up to 4 additional charges
Charging Port:
USB-C
Battery Capacity:
Each earbud: 35 mAh / 0.13 Wh Charging case: 400 mAh / 1.48 Wh
Connectivity & App
Bluetooth Version:
Bluetooth 5.3
BR/EDR, LE, Dual-mode, LE Audio
Companion App:
iOS17 or later
Data Syncing:
Continuous, event-driven sync
Comfort & Fit
Ear Tip & Wing Sizes:
3 sizes (S, M, L)
Ear Tip & Wing Material:
Conductive silicone with Tecticoat® coating
Weight per Smartbud:
~5g
In the box
Smartbuds
Charging Case
Getting Started Guide
400mm USB-C to USB-C cable
Eartips (S, M, and L)
Wings (S, M, and L)