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Clear out junk files and repair common Windows errorsFree Scan →Scan for outdated or missing drivers - takes under a minuteDriver Scan →The biggest difference is streaming: Ozlo Sleepbuds 2 can play audio from a Bluetooth source and switch to sleep sounds, while Bose Sleepbuds II were designed for masking and relaxation tracks—not music streaming or calls. Ozlo also lists sleep modes, tracking and a private in-ear alarm. Bose’s model is a legacy product, so current availability and app support should be checked before buying one secondhand.
How the audio works
Ozlo Sleepbuds 2: streaming and sleep sounds
Ozlo Sleepbuds 2 support Bluetooth audio streaming as well as built-in sleep sounds and soundscapes. Ozlo describes modes that can transition from streamed audio to masking sounds, which may suit someone who listens to a podcast or other audio while winding down and then wants a more sleep-focused sound. Ozlo lists 60+ sleep sounds and soundscapes on its current product page. Ozlo Sleepbuds 2 specifications
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Bose Sleepbuds II: masking and stored tracks
Bose said at launch that Sleepbuds II do not stream music or support calls. They played relaxation and noise-masking tracks through the Bose Sleep app, with more than 35 tracks offered and up to 10 stored on the buds, according to Bose’s September 2020 announcement. They are not ordinary Bluetooth earbuds with sleep features added. Bose’s 2020 Sleepbuds II announcement
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At-a-glance comparison
| Feature | Ozlo Sleepbuds 2 | Bose Sleepbuds II |
|---|---|---|
| Primary role | Sleep sounds and masking, plus Bluetooth streaming (Ozlo product page, accessed 2026) | Sleep-focused masking and relaxation tracks (Bose, 2020) |
| Streaming | Bluetooth source streaming supported (Ozlo product page, accessed 2026) | No music streaming, per Bose’s 2020 announcement |
| Calls | No microphone in the earbuds, per Ozlo (product page, accessed 2026) | No calls, per Bose (2020) |
| Battery claim | Up to 14 hours per charge under Ozlo’s stated test conditions: streaming audio and Sleep Sounds at 50% volume; actual runtime varies (Ozlo product page, accessed 2026) | 10 hours per bud, plus up to 30 additional hours from the case, as announced by Bose in 2020 |
| Noise management | Passive reduction from silicone tips plus adaptive sound masking (Ozlo product page, accessed 2026) | Noise masking and soft-sealing tips; Bose said these were not ANC headphones (Bose, 2020) |
| App and controls | Modes, sound tuning, sleep tracking, an in-ear alarm and Smart Case controls are listed by Ozlo (product page, accessed 2026) | Bose Sleep app controls for alarm, volume and track selection (Bose, 2020) |
| Fit details | 1.6 g per earbud, 11 mm height and four tip sizes listed by Ozlo (product page, accessed 2026) | Shallow enclosure and three tip sizes described by Bose (2020) |
| Product status | Listed on Ozlo’s current product page, accessed 2026 | Bose support search metadata identifies sales from 2020–2022; verify local availability and present support |
Battery life: compare the claims, not a head-to-head test
Ozlo claims up to 14 hours per charge and says that figure was demonstrated with streaming and Sleep Sounds at 50% volume. The company cautions that runtime varies with audio, volume, Bluetooth use, settings, battery age and charging history. Bose announced 10 hours of runtime per bud and up to 30 additional hours from the case in 2020. These are manufacturer figures from different products and years, not results from a controlled comparison, so they do not establish which will last longer in a particular person’s routine. Ozlo’s current battery specifications Bose’s 2020 battery announcement
#1 Best Overall
- SIDE-SLEEPER FIT THAT STAYS PUT ALL NIGHT. Just 1.6g and flush to your ear, so you can roll over without soreness or pop-out. Four soft ear tip sizes for a secure, personal fit.
- MASKS SNORING, TRAFFIC, AND CITY NOISE. A steady sound shield holds all night long, tuned for the low rumble of partner snoring. Consistent sound keeps the noises that usually wake you from reaching you.
- 14-HOUR BATTERY LASTS THE WHOLE NIGHT. No waking up to a dead bud at 3am. A private in-ear alarm wakes only you, at a volume you set, without disturbing your partner.
- 50+ SLEEP SOUNDS, OR STREAM YOUR OWN. White noise, nature, and calm tones for sleep or meditation, plus music and podcasts over Bluetooth. A sleep timer fades audio as you drift off, then switches to masking.
- PURPOSE-BUILT FOR SLEEP, NOT ADAPTED FROM DAYTIME EARBUDS. The Smart Case measures bedroom noise, light, and temperature overnight, and the Ozlo app (iOS + Android) turns it into sleep insights that sharpen with use.
Noise masking is not active noise cancellation
Neither product should be treated as an ANC headphone. Bose explicitly described Sleepbuds II as covering sound rather than cancelling it. Ozlo describes passive noise reduction from its silicone tips together with adaptive sound masking. In practical terms, a seal may reduce some outside sound, while masking adds audio intended to make disruptive noises less noticeable; neither description promises silence or hearing protection. Bose’s explanation of Sleepbuds II noise masking Ozlo Sleepbuds 2 product details
Controls, sound options and alarms
Ozlo’s broader listed feature set
Ozlo lists sleep tracking, sleep modes, audio tuning, an in-ear alarm, and a multifunction button on the Smart Case. Ozlo also says the earbuds have no microphone; the microphone in the case is used to assess noise in the sleep environment, not for calls. These are manufacturer-described features, not an independent assessment of how accurately tracking works or how easy the controls are to use. Ozlo product page
Rank #2
- SNORE MASKING, ALL NIGHT LONG: Precision noise masking holds a steady sound shield tuned for partner snoring, traffic, and city noise — no cutting in and out like noise-cancelling headphones. Works the same on thin hotel walls as it does at home
- BUILT FOR SIDE SLEEPERS — STAYS PUT ALL NIGHT: Tiny 1.6g wireless earbuds sit flush in your ear and stay in place when you roll over, so side sleepers get no soreness and no pop-out. Four soft ear tip sizes dial in a secure fit that holds through a red-eye or a hotel bed
- 14-HOUR BATTERY + GENTLE IN-EAR ALARM: Up to 14 hours of continuous battery covers a full night with room to spare, so a long-haul flight and the night you land are both handled. A private in-ear alarm wakes only you, without disturbing anyone else in the room
- SMART CASE SENSES YOUR SLEEP ENVIRONMENT: The Smart Case measures noise, light, and temperature while you sleep, at home or in an unfamiliar room. The Ozlo app (iOS + Android) turns those readings into personalized sleep insights that sharpen over time
- HARD SHELL TRAVEL CASE INCLUDED: The woven fabric case holds your Sleepbuds, Smart Case, charging cable, and spare ear tips, with an interior mesh pocket so nothing goes missing between hotel rooms. Soft lining inside, crush protection outside
Bose’s app-led approach
Bose’s 2020 description centers on selecting relaxation or masking tracks and controlling the alarm and volume in the Bose Sleep app. The launch announcement also reported participant feedback from a Bose-partnered user-tested study: 100% said masking worked against common disturbances, 86% said the product helped them fall asleep easier, 76% said it helped them stay asleep, and 80% reported an overall improvement in sleep quality. Bose’s announcement does not provide the study’s sample size, protocol or publication details, so those percentages are reported participant responses—not a clinical guarantee or a direct comparison with Ozlo. Bose’s 2020 announcement and reported study results
Fit and overnight comfort
Ozlo lists each Sleepbuds 2 earbud at 1.6 g and 11 mm high, with four tip sizes and a low-profile shape. Bose described Sleepbuds II as having a shallow enclosure and included three tip sizes. Those measurements and design descriptions do not predict comfort for every ear: fit is personal, and side sleepers may be especially sensitive to pressure. Check the seller’s return terms and whether replacement tips are available and compatible before committing. Ozlo product specifications Bose Sleepbuds II launch details
Rank #3
- Reduce Noise and Mask Snoring: Noise reduction quiets traffic rumble, appliance hum, and other environmental disturbances, while adaptive snore-masking technology detects your partner's snoring in real time and plays masking audio to help cover snoring sounds for a quieter night's sleep.
- Barely-There Fit for Side Sleepers: Wake up without ear pain. At just 3 g each, these ultra-compact, soft silicone earbuds feature a 3D ergonomic design that sits flush in your ear—minimizing pressure and delivering ultimate comfort, even if you sleep on your side all night.
- Sleep Stories to Calm Your Mind: Enjoy a curated selection of premium Sleep Stories from Calm. You can also explore a diverse sound library, including AI Brainwave Audio and white noise, to match your preferences.
- Uninterrupted All-Night Battery: Provides 8-10 hours of playtime per charge and up to 5 nights of use with the charging case. Flexible playback options provide 6 - 16 hours of playback, enabling convenient use overnight or during naps.
- Smart Sleep Tracking and Insights: Discover how you sleep. The companion app tracks your sleep duration, sleep positions, and even snoring patterns to generate a personalized daily report. Use these easy-to-understand insights to build healthier sleep habits and wake up refreshed.
Which one makes sense for your routine?
Choose Ozlo if you want streaming and mode transitions
- You want to stream audio from a Bluetooth source before sleep.
- You value a switch to sleep sounds, sleep modes, tuning options or an in-ear alarm.
- You prefer a product currently listed by its manufacturer and want to check its published specifications and return terms there.
Consider Bose only if its narrower use case fits
- You mainly want stored masking or relaxation tracks rather than streamed audio.
- You are considering remaining stock or a used set and can verify its condition, fit, return options and present app support before purchase.
Bose Sleepbuds II are a legacy model: Bose announced them in 2020, and support search metadata identifies sales from 2020–2022. Current app support and the condition of any secondhand unit are not established here; confirm both with the seller or Bose before buying. Bose’s 2020 announcement
Quick Recap
Best Value
- Full Night of Peaceful Sleep: Enjoy the distinctive 4-point noise masking system with sound masking, twin-seal ear tips providing 3× stronger passive noise blocking, and smart volume control to block out unwanted noise. Although Sleep A20 does not have active noise cancellation, it effectively reduces noise in high-frequency bands.
- Ideal for Side Sleepers: Sleep A20 combines soundcore's Air Wing with a 3D ergonomic design. Wrapped in an ultra-soft material, it provides the added benefit of pressureless comfort—even when sleeping on your side.
- Ultra-Long Playtime: Sleep mode boasts 14 hours of battery life on a single charge, extending to 80 hours with the case. Bluetooth mode offers 10 hours of playtime, with an additional 55 hours via the charging case.
- Stream Content Via Bluetooth: Features a customizable white noise library and a stable Bluetooth 5.3 connection, letting you stream your favorite audio for a restful night's sleep.
- Sleep Analytics for Better Sleep: Sleep A20 tracks sleeping positions and movement through the night using a MEMS sensor. Coupled with a Real-Time Clock, enjoy precise sleep quality analysis and acquire vital information regarding your nocturnal habits.
Rank #4
- 3D Ergonomic Comfort for Side Sleepers: Each earbud weighs about 2.5g, and these sleep earbuds for side sleepers feature a soft silicone build with a 3D ergonomic design that fits the natural contours of your ear. The compact shape sits securely while helping reduce pressure, making the earbuds comfortable even when lying on your side. Designed for a gentle, low-profile fit that supports more relaxed, uninterrupted sleep.
- Built-In White Noise & App Sound Library: Euno 7 sleeping headphones come with preloaded white noise to help create a more relaxing sleep environment. These bluetooth earbuds for sleeping also connect with the Zemyee Life App, offering a wider selection of sounds including white noise, sleep music, nature sounds, and meditation tracks. Suitable for sleep, meditation, travel, or yoga, helping you build a personalised routine for different relaxation needs.
- Dual Sleep Modes with Smart Control: Euno 7 sleeping earbuds feature Normal Sleep and Deep Sleep modes for flexible nighttime use. In Sleep mode, these ear buds for sleeping help limit notifications and reduce disturbances for a quieter environment. With the Zemyee Life App, you can select built-in sounds and set a sleep timer, allowing audio to pause automatically after you fall asleep. (Note: Online sound library is unavailable in Sleep mode.)
- Gentle Tap Controls for Night Use: Euno 7 sleep ear buds feature easy tap controls in Normal mode, allowing these sleep buds to manage music, track changes, calls, volume, and voice assistant with simple taps. Controls can also be customised in the app for a more personalised experience. In Sleep mode, most tap functions are disabled, keeping only a four-tap gesture to switch or exit modes—helping reduce accidental touches and support more uninterrupted sleep.
- Long-Lasting Battery with LED Display: Euno 7 Sleep Earphones provide up to 6–8 hours of playback on a single charge, with additional power from the charging case for extended use. These headphones for sleeping support overnight listening and everyday convenience. USB-C fast charging helps reduce downtime, while the LED display on the case clearly shows the remaining battery level of both the earbuds and charging case.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
