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Sleep Care

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Znie S-300

Znie S-⁠300

A scientific sleep care solution for your nights

A scientific sleep care solution for your nights

Change your tomorrow with deep sleep. A smart sleep routine with Znie to stabilize your brain waves.

Pink noise + ELF

8-hour auto sleep cycle

122 x 140 x 115 mm, 500 g

Znie S-300 FrontDrag to change the angle

Why is sleeping difficult?

Due to irregular sleep habits, stress, and digital device usage, the quality of sleep is deteriorating. Difficulty falling asleep and frequent awakenings affect your daily condition, health, and emotional stability. Now, a scientific solution for direct sleep care is needed.

A night with Znie

A night with Znie

From bedtime to morning.

Znie S-300 on a bedside table

01

Before sleep

Znie uses pink noise only during the sleep onset stage, helping you fall asleep faster and more comfortably.

02

Deep sleep

During the deep sleep stage (NREM1 to REM), Znie delivers Alpha, Theta and Delta ELF to align with your sleep cycle.

03

A fresh morning

The 8-hour auto sleep cycle ends with Wake-up mode (1 hour).

04

Starting tonight

Starting tonight, fall asleep comfortably, naturally, and deeply with Znie.

Znie S-300 on a bedside table

01

Before sleep

Znie uses pink noise only during the sleep onset stage, helping you fall asleep faster and more comfortably.

Znie S-300 glowing softly beside a sleeping person

02

Deep sleep

During the deep sleep stage (NREM1 to REM), Znie delivers Alpha, Theta and Delta ELF to align with your sleep cycle.

Znie S-300 by the bed in the morning light

03

A fresh morning

The 8-hour auto sleep cycle ends with Wake-up mode (1 hour).

A fingertip pressing the top of Znie S-300

04

Starting tonight

Starting tonight, fall asleep comfortably, naturally, and deeply with Znie.

Znie's proprietary technology

Znie aligns with your sleep cycle by delivering pink noise during the sleep onset stage and E.L.F (Alpha, Theta, Delta) waves during the deep sleep stage (NREM1 to REM) and naturally synchronizes your biological rhythm with your brain waves.

Auto-modulated 8-hour sleep cycle system

The ELF band changes automatically with each sleep stage. Tap a segment.

Sleep mode
Wake-up mode (1 hour)
Sleep onsetNREM1NREM2NREM3REMNREM2~REMMaintainMaintainWake-upWake-upWake-up
30min15min30min20min25min30min30min30min25min10min
ALPHATHETADELTADELTATHETADELTA · THETAALPHAALPHAALPHAALPHABETA
NREM230min · Delta 0.5 to 4Hz

The slowest band of the brain wave spectrum.

A conceptual view of the sleep cycle table in the catalogue. Repeated segments are not drawn to exact time scale.

Brain wave synchronization features

Proprietary wireless Extremely Low Frequency (E.L.F) transmission technology

Pink noise tracks co-developed with professional composers

Auto-modulated transmission system aligned with an 8-hour sleep cycle

Non-invasive and safe, without stimulating the auditory system

Pink noise features

Synchronizes brain waves without stimulation

Blocks external noise for a stable sleep environment

No burden or irritation to the ears

Znie uses pink noise only during the sleep onset stage, helping you fall asleep faster and more comfortably.

Pink noise is a natural, soothing sound that helps calm the brain for faster and deeper sleep.

Verified effectiveness of ELF

A study on improving insomnia and its emotional effects.

Sleep quality improved by 90%, emotional stability improved by 78%

Scores before and after use by assessment tool (mean ± SD)

P < 0.05
BeforeAfter
CategoryAssessment toolBefore useAfter useEffect
Improvement in InsomniaPittsburgh Sleep Quality Index (PSQI)7.9 ± 3.65.5 ± 2.5Improved sleep quality
Epworth Sleepiness Scale (ESS)8.5 ± 3.65.5 ± 3.4Reduced daytime drowsiness
Fatigue45.2 ± 9.133.9 ± 15.1Improved sleep quality
Insomnia Severity Index (ISI)11.9 ± 5.67.3 ± 3.8Symptom relief
Emotional EffectsPatient Health Questionnaire-9 (PHQ-9)4.7 ± 4.62.0 ± 1.9Decreased depressive mood
Geriatric Anxiety Scale (GAS)3.1 ± 2.11.8 ± 1.9Decreased anxiety
Sleep QualitySleep Assessment Questionnaire (SAQ)6.1 ± 4.53.1 ± 2.5Improved sleep quality
  • Pittsburgh Sleep Quality Index (PSQI)Improved sleep quality
    Before 7.9 ± 3.6After 5.5 ± 2.5
  • Epworth Sleepiness Scale (ESS)Reduced daytime drowsiness
    Before 8.5 ± 3.6After 5.5 ± 3.4
  • FatigueImproved sleep quality
    Before 45.2 ± 9.1After 33.9 ± 15.1
  • Insomnia Severity Index (ISI)Symptom relief
    Before 11.9 ± 5.6After 7.3 ± 3.8
  • Patient Health Questionnaire-9 (PHQ-9)Decreased depressive mood
    Before 4.7 ± 4.6After 2.0 ± 1.9
  • Geriatric Anxiety Scale (GAS)Decreased anxiety
    Before 3.1 ± 2.1After 1.8 ± 1.9
  • Sleep Assessment Questionnaire (SAQ)Improved sleep quality
    Before 6.1 ± 4.5After 3.1 ± 2.5

The study showed significant overall sleep quality improvement and a statistically meaningful (P<0.05) reduction in insomnia severity. Importantly, it also demonstrated emotional improvements, such as reductions in depression and anxiety.

Approval no.
IS20OISE0070
Subjects
15 adults aged 20 or older with insomnia symptoms
Measurements
PSQI, ESS, Fatigue, ISI, PHQ-9, GAS, SAQ

Lower scores indicate milder symptoms. Bars compare each score relative to its before-use value.

Recommended for

Znie is not just a simple sleep aid device. It's a smart sleep partner that transforms your nights through scientific technology. Starting tonight, fall asleep comfortably, naturally, and deeply with Znie.

01

Those who have trouble falling asleep

Those who have trouble falling asleep

02

Those who wake up frequently or toss and turn

Those who wake up frequently or toss and turn

03

Those who want to sleep naturally without sleeping pills

Those who want to sleep naturally without sleeping pills

04

Those who need emotional stability

Those who need emotional stability

05

Those who sleep with pets or children

Those who sleep with pets or children

Znie cares for your quality of life beyond just sleep.

Znie cares for your quality of life beyond just sleep.

Specifications

Znie is more than a simple sleep aid. It's your sleep routine partner that enhances your quality of life.

Product name

Znie (S-300)

Input

DC 5V, 1.5A

Size

122 x 140 x 115 mm

Weight

500 g

Material

ABS, PC

KC cert.

R-R-Hny-S-300

Country of manufacture

Made in Korea

Manufacturer

HONEY IT INC.

Znie S-300 outline drawing

Certification

Tap a certificate to view it larger, then zoom in for details.

  • Patent RegisteredNo. 10-2169133

HONEY IT makes Znie, a sleep care device that creates a healthy sleep environment with ELF brain wave synchronization.

Company reg. no.

593-87-00158

CEO

BK Son

Address

4F, 67, Jomaru-ro 427beon-gil, Bucheon-si, Gyeonggi-do, Republic of Korea

CS / After-sales service

HONEY IT makes Znie, a sleep care device that creates a healthy sleep environment with ELF brain wave synchronization.

Company reg. no.

593-87-00158

CEO

BK Son

Address

4F, 67, Jomaru-ro 427beon-gil, Bucheon-si, Gyeonggi-do, Republic of Korea

CS / After-sales service

HONEY IT makes Znie, a sleep care device that creates a healthy sleep environment with ELF brain wave synchronization.

Company reg. no.

593-87-00158

CEO

BK Son

Address

4F, 67, Jomaru-ro 427beon-gil, Bucheon-si, Gyeonggi-do, Republic of Korea

CS / After-sales service