510(k) · Cleared
ClearedDreem 3S
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Beacon Biosignals, Inc. · OLZ Automatic Event Detection Software For Polysomnograph With Electroencephalograph
Cleared on Aug 18, 2023 as substantially equivalent to K192469 (Nox Medical, 2019) after a 268-day review. Its family tree reaches back 4 generations to 1987. 1 later device descends from it.
- Decided
- Aug 18, 2023
- Review
- 268 days
- Class
- Class II
- Product code
- OLZ
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 4 generations to K873535 (1987). 8 ancestors in all. 1 later device descends from it, 1 citing it directly.
- Root · 4 generations backK873535 Nicolet Expert Sleep/Wake Analysis SystemNicolet Biomedical Instruments · 1987
- 3 generations backK955841 Sleep System for Clinics & ResearchCompumedics Ptd, Ltd. · 1997
- 2 generations backK072201 Compumedics Somte PSG Recording SystemCompumedics Limited · 2008
- 1 generation backK192469 Nox Sleep SystemNox Medical · 2019
- This deviceK223539 Dreem 3SBeacon Biosignals, Inc. · 2023
- Descendant · cites it directly · 0 of its ownK242094 Dreem 3SBeacon Biosignals, Inc. · 2024
Most influential descendants
Showing 1 of 1 · See all- K242094Dreem 3SBeacon Biosignals, Inc. · 2024 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −4 | K873535 | Nicolet Expert Sleep/Wake Analysis System | Nicolet Biomedical Instruments | 1987 | — |
| −3 | K955841 | Sleep System for Clinics & Research | Compumedics Ptd, Ltd. | 1997 | — |
| −2 | K072201 | Compumedics Somte PSG Recording System | Compumedics Limited | 2008 | — |
| −1 | K192469 | Nox Sleep System | Nox Medical | 2019 | — |
| 0 (this device) | K223539 | Dreem 3S | Beacon Biosignals, Inc. | 2023 | — |
| +1 | K242094 | Dreem 3S | Beacon Biosignals, Inc. | 2024 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1992 | 1 | 0 |
| 2000 | 2 | 0 |
| 2003 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2024 | 1 | 0 |
Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in OLZ? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
Top candidate predicates for a new OLZ device
- #1 K253390 Somnum (Somnum)score 14.3 · 10 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (1)
Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K192469 | Nox Sleep SystemSummary page 4…tem Regulation: 21 CFR 882.1400, Electroencephalograph Product code: OLZ, OLV Device Class: 2 Review Panel: Neurology Predicate Device Nox Medical, Nox Sleep System - K192469. Device Description The Dreem 3S headband contains microelectronics, within a flexible case made of plastic, foam, and fabric. I… | 2019 |
| † | K170138 | Neuronaute | 2017 |
What descends from it? (1)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K242094 | Dreem 3S | 2024 | 0 |
Has anything in its family been recalled? (0 Class I)
No FDA recall names this device.
No ancestor or descendant has a Class I recall.
What does this lineage say?
- The line of descent spans 36 years and passes through 5 companies; a new generation was cleared every 11.1 years on median.
- 1 of the 8 ancestors has a recall of any class.
- Of its descendants, K242094 (Beacon Biosignals, Inc., 2024) has gone furthest, with 0 descendants of its own.
- 2 other devices also cite its predicate K192469.
How does its category compare?
All OLZ devicesOLZ Automatic Event Detection Software For Polysomnograph With Electroencephalograph: FDA decisions, review times, recalls and adverse event reports over 20 years. 2023, this device’s year, is highlighted.
FDA decisions per year · OLZ
4in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · OLZ
185in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · OLZ
No recall names OLZ since 2007.
Adverse event reports per year · OLZ
3in 2025
MAUDE reports naming product code OLZ, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 1 | — | 0 | 0 |
| 2008 | 0 | — | 0 | 0 |
| 2009 | 0 | — | 0 | 0 |
| 2010 | 0 | — | 0 | 0 |
| 2011 | 1 | — | 0 | 0 |
| 2012 | 1 | — | 0 | 0 |
| 2013 | 1 | — | 0 | 0 |
| 2014 | 0 | — | 0 | 0 |
| 2015 | 2 | — | 0 | 0 |
| 2016 | 3 | 122 | 0 | 1 |
| 2017 | 2 | — | 0 | 0 |
| 2018 | 1 | — | 0 | 0 |
| 2019 | 2 | — | 0 | 0 |
| 2020 | 1 | — | 0 | 0 |
| 2021 | 1 | — | 0 | 0 |
| 2022 | 1 | — | 0 | 2 |
| 2023 | 2 | — | 0 | 1 |
| 2024 | 2 | — | 0 | 2 |
| 2025 | 4 | 185 | 0 | 3 |
| 2026 | 3 | 155 | 0 | — |
What is it indicated for?
The Dreem 3S is intended for prescription use to measure, record, display, transmit and analyze the electrical activity of
the brain to assess sleep and awake in the home or healthcare environment.
The Dreem 3S can also output a hypnogram of sleep scoring by 30-second epoch and summary of sleep metrics derived
from this hypnogram.
The Dreem 3S is used for the assessment of sleep on adult individuals (22 to 65 years old). The Dreem 3S allows for the
generation of user/predefined reports based on the subject’s data.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K223539 · printed Nov 5, 2026
Cite this page
510(k) Report. “K223539: Dreem 3S.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K223539
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026