Sleep Number Corporation (SNBR)
SNBR moved a median of -0.06% 30 minutes after news, and -0.83% by the close. How SNBR actually reacts to news — the realized, point-in-time move the market made, measured across 360 labeled events over the last three years with zero look-ahead.
SNBR’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.04% | 46% | 353 |
| 30-min | -0.06% | 49% | 353 |
| 60-min | -0.36% | 47% | 353 |
| to close | -0.83% | 47% | 350 |
| Middle 50% of SNBR reactions | -2.87% to +2.59% |
|---|---|
| Median reaction (30-min) | -0.06% |
| Measured reactions | 360 |
Half of all Sleep Number Corporation news events land between -2.87% and +2.59% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
Email me when SNBR moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to SNBR's baseline. Nothing else.
Recent SNBR events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Sleep Number Receives Court Approval for Sale to Sleep Country Canada | Press release | Business Wire | — | — | |
| Form 8-K Sleep Number Corp For: Jun 16 | SEC filing · Form 8-K | SEC EDGAR | +8.79% | -6.12% | |
| Form 8-K Sleep Number Corp For: Jun 16 | SEC filing · Form 8-K | SEC EDGAR | -2.63% | +123.37% | |
| Form 8-K Sleep Number Corp For: Jun 12 | SEC filing · Form 8-K | SEC EDGAR | +7.32% | -4.83% | |
| Sleep Number Enters Asset Purchase Agreement to Combine with Sleep Country Canada, Creating an Industry Leader in North America | Press release | Business Wire | +5.21% | +2.68% | |
| Bronstein, Gewirtz & Grossman, LLC Initiates an Investigation into Allegations Against Sleep Number Corporation (SNBR) And Encourages Shareholders to Reach Out | Press release | ACCESS Newswire | -2.46% | -3.72% | |
| Form 8-K Sleep Number Corp For: Jun 04 | SEC filing · Form 8-K | SEC EDGAR | +2.09% | -5.73% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against Sleep Number Corporation (SNBR) and Encourages Shareholders to Learn More About the Investigation | Press release | ACCESS Newswire | -3.01% | -3.91% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages Sleep Number Corporation (SNBR) Shareholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | -1.58% | +13.34% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages Sleep Number Corporation (SNBR) Stockholders to Inquire about Securities Investigation | Press release | ACCESS Newswire | +4.16% | +8.27% | |
| Form 8-K Sleep Number Corp For: May 27 | SEC filing · Form 8-K | SEC EDGAR | -8.06% | -14.11% | |
| Sleep Number Corporation (SNBR) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Shareholders to Contact the Firm to Learn More About the Investigation | Press release | ACCESS Newswire | +0.70% | -13.10% | |
| Bronstein, Gewirtz & Grossman, LLC Is Investigating Sleep Number Corporation (SNBR) And Encourages Stockholders to Connect | Press release | ACCESS Newswire | +2.89% | +2.48% | |
| Sleep Number Corporation (SNBR) Investigation: Bronstein, Gewirtz & Grossman, LLC Encourages Stockholders to Contact the Firm to Learn More About the Investigation | Press release | ACCESS Newswire | -1.57% | -25.39% | |
| Bronstein, Gewirtz & Grossman, LLC Announces an Investigation Against Sleep Number Corporation (SNBR) and Encourages Stockholders to Learn More About the Investigation | Press release | ACCESS Newswire | +0.28% | +1.39% | |
| Bronstein, Gewirtz & Grossman, LLC Encourages Sleep Number Corporation (SNBR) Investors to Inquire about Securities Investigation | Press release | ACCESS Newswire | +0.28% | -1.11% | |
| Form 8-K Sleep Number Corp For: May 21 | SEC filing · Form 8-K | SEC EDGAR | -1.97% | +2.25% | |
| Form SD Sleep Number Corp | SEC filing · Form SD | SEC EDGAR | -1.97% | +2.25% | |
| Form 10-Q Sleep Number Corp For: Apr 04 | SEC filing · Form 10-Q | SEC EDGAR | -6.67% | -15.56% | |
| Form 8-K Sleep Number Corp For: May 12 | SEC filing · Form 8-K | SEC EDGAR | -6.67% | -15.56% | |
| Sleep Number Announces First Quarter 2026 Results | Press release | Business Wire | -6.67% | -15.56% | |
| Form 8-K Sleep Number Corp For: Apr 27 | SEC filing · Form 8-K | SEC EDGAR | +2.14% | +16.07% | |
| Sleep Number Announces Amendment to Credit Agreement | Press release | Business Wire | +2.14% | +16.07% | |
| Sleep Number Launches “To a Good Life’s Sleep™,” its Newest Fully Integrated Campaign and the Next Phase in its Brand Evolution | Press release | Business Wire | +2.14% | +16.07% | |
| Form DEF 14A Sleep Number Corp For: Jan 03 | SEC filing · Form DEF | SEC EDGAR | +14.75% | +44.26% | |
| Form PRE 14A Sleep Number Corp For: Jan 03 | SEC filing · Form PRE | SEC EDGAR | +0.39% | -6.20% | |
| Form 8-K Sleep Number Corp For: Mar 17 | SEC filing · Form 8-K | SEC EDGAR | +0.36% | -7.30% | |
| Sleep Number’s New, Innovative Product Line Available in Stores and Online Today | Press release | Business Wire | +1.00% | -7.00% | |
| Form S-8 Sleep Number Corp | SEC filing · Form S-8 | SEC EDGAR | -2.74% | +0.92% | |
| Sleep Number Announces Inducement Grants under Nasdaq Listing Rule 5635(c)(4) | Press release | Business Wire | -2.74% | +0.92% | |
| Form 10-K Sleep Number Corp For: Jan 03 | SEC filing · Form 10-K | SEC EDGAR | -4.55% | -34.46% | |
| Form 8-K Sleep Number Corp For: Mar 10 | SEC filing · Form 8-K | SEC EDGAR | -4.55% | -34.46% | |
| Form 8-K Sleep Number Corp For: Mar 12 | SEC filing · Form 8-K | SEC EDGAR | -4.55% | -34.46% | |
| Sleep Number Announces Fourth Quarter and Full Year 2025 Results | Press release | Business Wire | -4.55% | -34.46% | |
| Sleep Number Redesigns Its Mattress Portfolio with Five Innovative New Beds That Adapt Night After Night as Customers’ Needs Change | Press release | Business Wire | -4.55% | -34.46% | |
| Sleep Number Corporation to Announce Fourth Quarter and Full Year 2025 Results on March 12, 2026 | Press release | Business Wire | -0.36% | +1.25% | |
| Sleep Number Releases its Newest Campaign Focused on the Value of Personalized Comfort Through Moments That Shape Everyday Life | Press release | Business Wire | -2.35% | -3.42% | |
| Form 8-K Sleep Number Corp For: Jan 28 | SEC filing · Form 8-K | SEC EDGAR | -1.65% | -4.07% | |
| Sleep Number Welcomes Travis Kelce as its Newest Strategic Partner and Investor | Press release | Business Wire | -1.65% | -4.07% | |
| Sleep Number Introduces ComfortMode™ Mattress: Premium Comfort at an Affordable Price | Press release | Business Wire | -1.54% | +10.13% | |
| Sleep Number to Participate in 28th Annual ICR Conference | Press release | Business Wire | +1.29% | +0.72% | |
| Form S-8 Sleep Number Corp | SEC filing · Form S-8 | SEC EDGAR | -1.18% | -3.88% | |
| Sleep Number Announces Inducement Grant Under Nasdaq Listing Rule 5635(c)(4) | Press release | Business Wire | -3.99% | +5.99% | |
| Form 8-K Sleep Number Corp For: Nov 28 | SEC filing · Form 8-K | SEC EDGAR | -1.56% | +15.63% | |
| Sleep Number Names Amy O’Keefe as CFO | Press release | Business Wire | -1.56% | +15.63% | |
| Sleep Number Earns J.D. Power Award, Ranked #1 in Customer Satisfaction with Mattresses Purchased In-Store and Online | Press release | Business Wire | +0.69% | -2.55% | |
| Form 8-K Sleep Number Corp For: Nov 10 | SEC filing · Form 8-K | SEC EDGAR | -0.75% | -6.24% | |
| Form 10-Q Sleep Number Corp For: Sep 27 | SEC filing · Form 10-Q | SEC EDGAR | -5.57% | -8.45% | |
| Form 8-K Sleep Number Corp For: Nov 04 | SEC filing · Form 8-K | SEC EDGAR | +5.06% | +30.62% | |
| Form 8-K Sleep Number Corp For: Nov 05 | SEC filing · Form 8-K | SEC EDGAR | +5.06% | +30.62% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the SNBR section they belong to.
Where else SNBR is measured.
SNBR earnings → · Analyst actions → · SEC filings →
Other Consumer Cyclical names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| SALEM MEDIA GROUP INC A (SALM) | 361 | 0.00% | 31% |
| Clear Channel Outdoor Holdings, Inc. (CCO) | 360 | 0.00% | 44% |
| COMPASS GROUP SP/ADR (CMPGY) | 358 | +0.00% | 51% |
| Carter's, Inc. (CRI) | 355 | -0.07% | 45% |
Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not.
All Consumer Cyclical names, measured the same way →
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Every name we’ve measured, in one place.
How the numbers are made.
How is Sleep Number Corporation's median reaction calculated?
Every labeled SNBR news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 360 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 49% of SNBR's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does SNBR's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.