510(k) Report

De Novo · Granted

Granted

Dream Sock

DEN220091De NovoGranted Nov 8, 2023329-day reviewClass II21 CFR 870.2705

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Owlet Babycare, Inc. · QYU Infant Pulse Rate And Oxygen Saturation Monitor For Over-The-Counter Use

Granted on Nov 8, 2023 as a new device type through De Novo after a 329-day review. 1 later device descends from it.

Decided
Nov 8, 2023
Review
329 days
Class
Class II
Product code
QYU
Recalls
None

1 later device descends from it, 1 citing it directly.

Descendants, by year cleared 2024: 1 descendant cleared2020202220242026
  1. This deviceDEN220091 Dream SockOwlet Babycare, Inc. · 2023
  2. Descendant · cites it directly · 0 of its ownK234021 Masimo StorkMasimo Corporation · 2024

Most influential descendants

Showing 1 of 1 · See all
  • K234021Masimo StorkMasimo Corporation · 2024 · cites it directly0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
0 (this device)DEN220091Dream SockOwlet Babycare, Inc.2023—
+1K234021Masimo StorkMasimo Corporation2024—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
202410
FIG. 1 — Lineage of DEN220091, 2023–2024Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

Sources: FDA De Novo 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 QYU? 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 QYU device

  1. #1 K234021 Masimo Storkscore 7.3 · 1 generation · no Class I recall
Get a 510(k) Report

Does it have a predicate?

De Novo decisions do not claim a predicate device.

What descends from it? (1)

1 later device cites it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K234021Masimo StorkMasimo Corporation20240

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?

  • Of its descendants, K234021 (Masimo Corporation, 2024) has gone furthest, with 0 descendants of its own.

How does its category compare?

All QYU devices

QYU Infant Pulse Rate And Oxygen Saturation Monitor For Over-The-Counter Use: FDA decisions, review times, recalls and adverse event reports over 20 years. 2023, this device’s year, is highlighted.

FDA decisions per year · QYU

1in 2024

2023: 12024: 1
2007high 1 (2023) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · QYU

Too few QYU 510(k)s in any year since 2007 to give a median.

Recalls per year · QYU

No recall names QYU since 2007.

Adverse event reports per year · QYU

5in 2025

2024: 12025: 5
2007high 5 (2025) · low 0 (2007)2025

MAUDE reports naming product code QYU, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20070—00
20080—00
20090—00
20100—00
20110—00
20120—00
20130—00
20140—00
20150—00
20160—00
20170—00
20180—00
20190—00
20200—00
20210—00
20220—00
20231—00
20241—01
20250—05
20260—0—

What is it indicated for?

The Dream Sock analyzes photoplethysmography data to identify instances when the infant’s pulse rate (PR) and/or oxygen saturation (SpO2) moves outside a preset range, and provides a notification to the caregiver, prompting them to assess the infant. The Dream Sock also displays the infant’s PR and SpO2 values to the caregiver and displays trends in these measured values, and their relationship to the preset ranges, over time. These PR and SpO2…

Read the full statement (212 words)

The Dream Sock analyzes photoplethysmography data to identify instances when the infant’s pulse rate (PR) and/or oxygen saturation (SpO2) moves outside a preset range, and provides a notification to the caregiver, prompting them to assess the infant. The Dream Sock also displays the infant’s PR and SpO2 values to the caregiver and displays trends in these measured values, and their relationship to the preset ranges, over time. These PR and SpO2 notifications and displays on the Dream Sock are intended for use in infants who are 1 to 18 months of age and between 6 to 30 lbs.

The Dream Sock is intended for over-the-counter (OTC) use only in a home environment. It is not intended to provide notification for every episode of the unexpected occurrences of elevated or depressed PR or a low SpO2 level; rather, the Dream Sock is intended to provide a notification only when sufficient data are available for analysis. The notifications and associated data can be used to supplement the decision by caregivers to seek additional guidance for medical care of the infant. The Dream Sock is not intended to replace traditional methods of monitoring, diagnosis or treatment.

The Dream Sock is not intended for use with infants previously diagnosed with cardiovascular or respiratory disease or conditions.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “DEN220091: Dream Sock.” Lineage record from FDA De Novo data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 3, 2026. https://510kreport.com/device/DEN220091

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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