I initiated the Lune project in 2015 inside the think tank team and an experimental design project, working with an electrical and a software engineer. We are trying to design a device to monitor and improve users' sleep quality by utilizing Music Therapy and sensing technology.

The initial concept is to make the Lune a combination of a sleep sound device, a pillow speaker, and a sleep tracking sensor, and these three features can work together seamlessly.

After setting up an alarm on the smartphone and connected with the Lune device, users can put the device under or beside the pillow. Once the motion sensor detects that the user falls into a deep sleeping stage, the sleep sound will fade away. During 30 minutes before the user's desired alarm time, the device will start the alarm when the user is in the lightest possible sleep state. After wake up, the user can leave the device on the bed or put it on the charging station if necessary and check your smartphone's sleep record. 

For the second round of design iteration, I tried to eliminate all the features that electronic devices will commonly have and make the device more compatible with the bed environment using soft, natural materials and forms.  

Based on the second prototype's feedback, I found a comfortable place to put a physical interface that contains two volume keys and two sound switch keys onto the device. The third prototype has speaker holes on one side and a capacitive touch surface on another side. With this design, the speaker holes side will face up when users put it under the pillow, and if they hold it in their hand, the interface side will right towards their face in the most common situation. The design also prevents users from accidentally touch the interface while sleeping.

Although all the team members like the third design, we couldn't reduce the device's thickness without decreasing the battery volume and taking away the hardware space, which will vastly reduce the device's performance. So in the Forth design iteration, I tried to solve the problem by spreading PCB, battery, and speaker into a rectangle. Each part has enough space, meanwhile minimizing the thickness and maximizing the performance of the device. The rectangle is flexible. Users can either put it under the pillow or simply fold it into a triangular shape and put it beside the pillow.