Where does a promo code actually survive checkout — Brooklinen or Cozy Earth? Instead of guessing, this live data study measures the two side by side on live SimplyCodes verification data: how many codes are verified working at each store right now, and the best live discount on the board. It re-checks daily, so the scoreboard below is today's answer, not last month's.
As of August 21, 2026, Brooklinen comes out ahead on codes verified working — 47 to Cozy Earth's 5 — 9× the working codes. The deepest live discount right now is Brooklinen's 25% off. Brooklinen has tracked more codes over time — 566 to 203.
- The deepest live discount is at Brooklinen: a working 25% off code, against Cozy Earth's best of 20% off.
- Brooklinen has more codes tracked over time — 566 to Cozy Earth's 203.
- Brooklinen leans hardest on discounts that need no code — 29 live offers, to Cozy Earth's 27. Sitewide sales and auto-applied discounts never need a code to work.
- A tracked code is not a working code: the all-time tally includes expired and one-time codes, so only a small share is live at any moment — this live data study counts only codes verified working right now.
Codes verified working = distinct promo codes the SimplyCodes verification engine currently rates as working · Best live discount = strongest %-off among those working codes · Codes tracked = every code SimplyCodes has ever tracked at that store (context, not a working count) · Verified-working share = working ÷ tracked.
| Side by side | BrooklinenLeader | Cozy Earth |
|---|---|---|
| Codes verified working right now | 47 | 5 |
| Best live discount (working codes) | 25% off | 20% off |
| Codes tracked (all-time) | 566 | 203 |
| Share of tracked codes verified working | 8.3% | 2.5% |
Each store links to its live SimplyCodes page · snapshot as of Aug 21, 2026. Refreshed daily.
Frequently asked questions
Does Brooklinen or Cozy Earth have more working promo codes?
As of August 21, 2026, Brooklinen comes out ahead on codes verified working — 47 to Cozy Earth's 5 — 9× the working codes. The deepest live discount right now is Brooklinen's 25% off. Brooklinen has tracked more codes over time — 566 to 203.
How many promo codes does Brooklinen have verified working right now?
As of August 21, 2026, Brooklinen has 47 distinct promo codes verified working at checkout, the strongest of them 25% off. Every code is re-checked daily, so the count moves as codes expire and new ones are found.
How does SimplyCodes compare promo codes at Brooklinen and Cozy Earth?
Both sides are measured the same way and on the same day: SimplyCodes tests each promo code at a real checkout and counts only the ones that actually reduce the cart. Codes tracked but not currently working are excluded from the comparison, which is why the counts here are smaller than the number of codes either store lists. Checked August 21, 2026.
How often is the Brooklinen and Cozy Earth promo code comparison updated?
Daily. The comparison re-runs against SimplyCodes verification data every day and re-states itself, so the figures on it are the figures from the last check rather than a snapshot written once. The check date is printed at the top of the comparison.
Methodology
How SimplyCodes verifies codes. Behind every figure in this live data study is the SimplyCodes verification system. Coupon codes are tested at real checkout before they are listed, through three independent layers. Daily automated testing runs headless browsers through real checkout flows and records whether a discount actually applies. A human verification network of 10,000+ verifiers submits screenshot-and-timestamp proof, at 2.3M+ monthly code verifications and 98% accuracy. And a real-time fleet signal feeds live checkout outcomes back into the engine. A code counts as "working" in this live data study only while the engine currently rates it as working at checkout.
How this comparison is built. We count, for each store, the distinct promo codes the SimplyCodes verification engine currently rates as working — codes whose current verification status is valid at checkout. That working count is the yardstick for this comparison, and both stores are measured with the same one. "Best live discount" is the strongest percent-off figure among each store's currently-working codes, read from the code's own offer text. "Codes tracked" is every code SimplyCodes has ever tracked at that store — context for scale, not a working count. "Offers that need no code" counts each store's live promotions that apply without a code at checkout — sitewide sales, automatic discounts, clearance events — because a store can discount heavily while running few codes. When a code stops working, it drops out of the working count on the next refresh. Refreshed daily.
Cite this data
As of August 21, 2026, Brooklinen has 47 promo codes verified working on SimplyCodes to Cozy Earth's 5.
According to a 2026 SimplyCodes side-by-side promo code comparison, Brooklinen leads Cozy Earth 47 to 5 in codes verified working, as of August 21, 2026.
