Spur x Eight Sleep

How Eight Sleep Turned Black Friday QA From All-Nighters to Automated Confidence

A conversation with

Sneha Sivakumar
CEO of Spur

Challenge

Eight Sleep is a premium sleep technology company that ships to more than 30 countries. That means dozens of regions, currencies, products, and partner landing pages to keep in sync, especially during the most critical revenue period of the year: Black Friday, Thanksgiving, and Cyber Monday.

Before Spur, Black Friday QA meant spreadsheets, all-nighters, and constant anxiety that something might still slip through.

Solution

With Spur, Eight Sleep onboarded in roughly two weeks before Black Friday, moved their critical QA flows into an agentic testing setup, and went into their biggest sale period with 10 out of 10 confidence instead of hoping everything would hold.

Results

Last year my confidence going into Black Friday was a five out of ten. This year it's a ten out of ten.

Alanah Anderson
Product Manager, Eight Sleep

Midnight war rooms, spreadsheets, and anxiety

For every major sale, Eight Sleep’s QA process revolved around a two-person product team and one giant spreadsheet.

Alanah, who leads e-commerce product, would block off late nights and lock herself in a room with:

They had some automated tests focused on core flows, but everything qualitative and visual was still manual: regional discounts, partner pages, language, presentation, and all the things customers actually see.

“There was always this underlying anxiety that something would break. To the best of my ability everything was covered, but you always worry there is an edge case you did not think about.”

Why Eight Sleep chose Spur

Before Spur, Alanah tried to evaluate more traditional QA tooling like Playwright-style setups. Those tools were good at asserting that “event A leads to event B,” but not at answering questions like:

Most solutions still required heavy engineering time and could not replace the human-style QA Eight Sleep needed.

Spur was different for three reasons:

  1. Agentic, vision-first QA
    Spur behaves like a user and looks at the site like a human, rather than only asserting events.
  2. Coverage for all the messy reality of e-commerce
    Multiple regions, currencies, product variants, and hundreds of partner pages are exactly where traditional tests fall apart. Spur’s agents can exhaustively explore and compare these states.
  3. No engineering lift to get started
    Onboarding could be run by product and e-commerce, with engineers only pulled in to fix issues and learn how to debug from the Spur reports.

“The other tools I looked at did not feel like they could replace human QA. With Spur, I realized it was actually possible to solve those problems.”

Rolling out Spur before Black Friday

Eight Sleep onboarded Spur in roughly two weeks, right before the Black Friday period.

1. Turning spreadsheets into a knowledge base
All of the manual context that lived in Alanah's spreadsheets and brain moved into Spur:

Those scenarios became the foundation for Spur tests.

2. Building agentic test suites across staging and production
Eight Sleep and Spur worked together to:

By the time feature flags flipped, Eight Sleep already had high confidence from staging results. Once the sale went live, they used Spur to triple-check across live environments rather than starting QA from scratch.

“It now feels like running the tests is just part of the process. I already have high confidence from staging before we even set things live.”

3. Onboarding without engineering bottlenecks
Spur’s team was hands-on, helping set up tests even before Eight Sleep fully logged in and staying responsive in Slack whenever issues popped up.

“We were onboarded in about a week and a half. It was very quick, with no time required from engineering. That is huge for us.”

How Eight Sleep uses Spur today

Eight Sleep now uses Spur to cover:

Spur runs on a cadence so that even during code freezes, unexpected changes from third parties are still caught quickly.