A clearer starting point
Sleep Trial Diary
Record comfort, warmth and partner movement, then export your own return-deadline reminder.
One mattress trial per browser, up to 180 dated entries. No account, upload or AI processing. Export your records before clearing browser data. This diary does not send background notifications.
Trial overview
No trial saved yet
Entered deadline: Not entered · Latest recorded night: None
0 recorded nights. Six entries enable a first-versus-latest comparison.
3. Your observations (0/180)
No entries yet. Start with your first night.
Practical essentials
Understand your next step
Open a topic for context and checks to make before deciding.
- 1
Copy the seller deadline
- 2
Record one entry per date
- 3
Compare observations and export your records
Compare like with like
Keep track of changes to bedding or room conditions. Six entries allow a comparison of the first three and latest three; personal ratings do not prove why comfort changed.
Keep control of your records
The diary stays in this browser. Export the JSON file before clearing browser data. A new trial requires clearing the previous diary.
Will the site remind me automatically?
No. Export and import the calendar file into your own calendar, then verify its alert. Your entered date is not checked against seller policies.
Are notes sent to AI?
No. The diary is stored locally in this browser. It is separate from the shortlist and is not shared with the AI advisor.