COMMUNITY UPDATE #10: ENGINEERING UPGRADES AND TESTING
Dear Eight backers,
We’re back with our monthly update! We have a lot of progress to share, and below have explained each in detail, including product, shipping, app, and testing. As always, we appreciate you taking this crowdfunding journey with us, and supporting Eight from the very beginning. We couldn’t be here without you.
After several weeks with our product in some customer’s homes, we began noticing that a substantial number of units were presenting abnormal levels of noise in the data collected. We took some of the sensor strips apart, analyzed the issue, and discovered the following:
Due to the arrangement of the components inside the sensor, there was an increase in noise transference between the signals on the left and right side of the bed after a few weeks of use. So far, we had been managing this through noise-cancelling algorithms, but realized that this would not be enough and a hardware alteration was required to yield a better result.
The engineering team has now solved the problem introducing some changes to the design of the sensor strip, which have significantly reduced the noise interference between the sides of the bed – and in turn improved the accuracy of sleep data. We have now redesigned the sensor in a way that the left and right side of the sensor are no longer mechanically connected. Below is a side by side comparison of the old and new versions.
When we first discovered the issue we had to revise the shipping of most of the 1,000 units that we had originally planned to ship in May, and wait to receive the redesigned sensor strip. We also focused on increasing the quality tests we do before and after the units get assembled.
The new sensor strip with this design change arrived at our factory last week and we are currently testing it to understand if all problems have been solved. Once the new sensor strips have been tested and approved we will resume the assembly of units and shipping. This new sensor strip will be included in all the units that will ship from now on.
Considering the time it has taken to implement the engineering changes, we expect to finish fulfilling all 7,000 units as follows:
Due to the redesign of the sensor strip we will be producing Queen size units only in June and July while the other sizes will be manufactured starting late July, and will ship starting in August.
We understand that since purchasing, it’s not unlikely that personal details, such as bed size and shipping address, have changed. As soon as your unit is ready to ship we will reach out to you individually via email to confirm your order and shipping information.
Over the past few weeks, we have been making substantial changes in our mobile app’s visual identity based on the feedback we have received from our first users.
Below is a side by side comparison of the app’s before and after:
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PRODUCT TESTING AT OUR OFFICE
Some of you have visited our office in New York recently to participate in our usability testing, which allows us to gather feedback to improve our in-app experience. If you live in the NY area or will be visiting soon please answer this survey. We’d love for you to be a part of our testing and come to play with the product!
TESTING AT THE FACTORY
During the past weeks, our team in China has been conducting a new round of reliability tests with our units. These tests help us understand how our product behaves when shipped under tough conditions, and how it behaves at different temperatures, humidity levels, and more.
Here is a summary of our latest test results, with a more detailed description of each test below.
🔥 High temperature and high humidity test. This test involves placing final units in an oven (as pictured below). The temperature of the environment is 122 degrees Fahrenheit (50 degree Celsius temperature) and 90% humidity. After 24 hours in the oven, the units were still powered on, paired to wi-fi, and the sensor strip was still working.
💓 Vibration test. For this test, an Eight cover and all hardware components are placed in a vibrating box for 2 hours (as pictured below). After the test, the unit was still functioning properly.
💧 Drop test. We tested the unit with multiple drops at different heights. The unit was packed in a gift box (as it is when shipping). We dropped the unit flat on the bottom surface. It passed the test at all heights below 4 feet (120cm). The picture below shows the space where the test is performed at the factory.
As we manufacture more units, we continue to run these tests to ensure every batch has the highest quality. In addition to these reliability tests, we also perform testing of the software capabilities of each unit to make sure they work properly and that we can update the firmware remotely before they leave our factory.
We continue to work day and night to make this product better and better, and appreciate your continued patience and ongoing support. We never forget for a second that without you, we wouldn’t be doing what we are today. Taking a product from crowdfunding to production is a tough challenge, but having the support of great backers makes a world of difference.
If you have any questions, you can always reach out to us [email protected]