Cozy by Casper

A Case Study



Casper, a US e-commerce store sells mattresses, pillows, sheets, bed frames, and box springs. Their Mission Statement: At Casper, we believe that better sleep leads to a fuller, more adventurous life. We're devoted to improving the 26 years we each spend in bed and to brightening the days in between.


The Problem

We spend 26 years of our lives sleeping. What is sleep doing for me? What factors impact my sleep? What can I learn from my sleep? Everyone needs to sleep, so why not get information while the user is sleeping, so that they can be a more informed, productive person? How can we motivate users to prioritize sleep and help them develop better habits in order to impact their overall wellness and productivity?


The Opportunity 

Through a native app, we would provide sleep and wellness tools as well as recommendations to Casper’s existing and potential customers. The app will sync to the smart mattress topper developed by Casper which will monitor users’ physical states and track sleeping habits. By equipping customers with smart technology and a native mobile app, we aim to educate and empower users to improve their lives.


My Role and Timeline

UX Designer, 2 1/2 weeks

User Research-Surveys


We created a survey that was online and asked 15 questions. We wanted to screen users that valued their sleep and wellness, along with having a relationship with technology.  



  • 62% of users value their sleep.

  • 82% of users are interested in learning about wellness.

  • 64% of users very often sleep with their phone.

User Research-Interviews


After the surveys, we moved on to the interview process. We interviewed 6 people and wanted to know would users incorporate technology into their sleeping experience, and what features would users want in a sleeping app/smart technology? 


Affinity Mapping


After the interviews, we synthesized our interview findings by using post-it notes, a dry erase board, and markers. We discovered several trends such as Sleeping Habits, Apps Used, and Features.  



  • 6/6 sleep next to their phone.

  • 5/6 wanted to learn more about their sleep patterns.

  • 4/6 wanted to record their dreams.

Topper vs. Wearable


In addition to designing an app, we wanted to incorporate a syncing ability from the app to either a wearable or topper. During the interview process, we asked these questions to our users and synthesized the results. 



  • The topper would incorporate smart technology for Casper.

  • The topper provides a heating element.

  • The topper provides direct revenue for Casper.



From our interviews findings and synthesis, we started to create our personas. We had two personas that will help us develop our features and user flows. 


Feature Prioritization


From our interviews synthesis on features, we started Moscow (must-have, should-have, could-have and won’t have) feature prioritization. We focused on the must haves in the lower quadrant, which was least effort, most important.



  • Must-have Takeaways: Prioritize a number of REM hours, records when you wake up, records when you fall asleep, smart alarm, record movement (graph or image), phone sounds, record dreams. We will focus on these features.

  • Should-have Takeaways: Input nutrition and exercise, bed warming.

  • Could-have Takeaways: Set music as the alarm.


Evaluations-Competitive Analysis


We wanted to look into our competition to gain insight or areas so that we could improve our design. Eight sells smart toppers and mattresses. IT by Sleep Number sells only smart mattresses.



  • Casper can incorporate smart technology into their brand.

  • Casper can design a mobile application.

  • Casper can sell digital products.

User Flow


We designed 2 users flows based on the personas, Sleepy Sally and Drowsy Dave. Based on their behaviors, goals, needs, and stories, this is the happy path Drowsy Dave would take.




We designed our wireframes in Sketch and from there we did user testing. This is the Set Alarm page, Activity Tracker, and Heating page that we are focusing on. 

Screen Shot 2018-01-08 at 9.26.07 PM.png

User Testing


We interviewed 4 users, asked 15 questions, and gave 5 tasks to complete. Then presented tasks focused on find-ability and overall flow of the app.


KEY TAKEAWAYS from User Testing #1:

  • Alarm page: Users didn’t understand what a smart alarm was.

  • Activity Tracker page: Tracker name was misleading and users were uncertain about what linking wearable data encompassed.

  • Heater page: Unclear thermostat.


Iterations and medium fidelity


We iterated on our designs based on user testing findings and did users testing #2. We changed the Activity Tracker page name to Daily Influencers. 

Screen Shot 2018-01-08 at 9.33.09 PM.png

KEY TAKEAWAYS from User Testing #2:

  • Alarm page: The alarm screen was easy to understand. We added an information icon for Smart Alarm.

  • Daily Influencers page: Users wanted to be able to input additional data into their “influencers” -the naming was still an issue.

  • Heater page: Users found it easy to understand -comments on a toggle switch feeling more natural than two buttons for on/off.




Prototype Video



Next Steps

  • Topper product engineering.

  • User research regarding a number of sleepers.

  • Smart home integration.