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- Voice UX
- Amazon Partner
“Personal sleep coach right by your pillow.”
SleepVice: Alexa Voice App for Sleep
Alexa Voice App (Skill)
- Period
- June 2021- June 2022
- Role
- PMVoice User Interface DesignUX Research
- Team
- PM & VUI Designer (Me)Business DeveloperSoftware Engineer
- Org
- Asleep
What?
Built an Alexa voice app that tracks your sleep and coaches you through the night. It made Asleep Korea's first official Amazon Alexa startup partner and landed a spot at CES 2022.
Why?
50 to 70 million Americans have a sleep disorder, and the bedroom itself (light, noise, routine) is a big part of it. Asleep's AI could read sleep stages but had no way to act on the room.
How?
Designed voice conversations for sleep reports, smart alarms, and lights that dim and brighten with your sleep stage. Two rounds of user testing made it shorter and friendlier, raising task success from 83% to 88%.
I'm redesigning this case study as a web page. Every detail is in the PDF version below.




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- Asleep Becomes Korea's First Official Partner for Amazon Alexa
- Asleep Secures ₩16 Billion Series B Investment; Valuation Hits ₩90 Billion
- "Alexa, How Did I Sleep Last Night?": Asleep Joins Forces with Amazon Alexa
- 14 Incredible Startups Innovating with Alexa at CES
- Asleep x Amazon SleepVice Skill Introduction Video