Cookie Policy
Last updated: April 2026
What are cookies?
Cookies are small text files saved in your browser when you visit a website. They help sites remember things between visits, like your preferences or whether you have already seen a consent notice.
What cookies we use
Necessary
| Name | Purpose | Duration |
|---|---|---|
| sleeptools_consent_v2 | Stores your granular consent choice as JSON ,{ analytics, ads, recordedAt }. Renews every 12 months. | 365 days |
Analytics, Google Analytics 4
Only loaded if you accept cookies.
| Name | Purpose | Duration |
|---|---|---|
| _ga | Distinguishes users for Google Analytics reporting. | 2 years |
| _ga_* | Stores session state for Google Analytics 4. | 2 years |
Advertising, Google AdSense
Only loaded if you accept cookies.
| Name | Purpose | Duration |
|---|---|---|
| NID | Used by Google to show personalised ads. | 6 months |
| IDE | Used to measure ad conversion and frequency. | 13 months |
How to manage cookies
To change your consent choice, clear your browser's local storage for sleeptools.co and the consent banner will reappear on your next visit. You can also block all cookies through your browser settings, the calculators will continue to work normally.
To opt out of Google personalised advertising specifically, visit adssettings.google.com.
More information
See our Privacy Policy for full details on how we handle your data. Questions? Email hello@sleeptools.co.