01Ways to reach us
✉️
Email us
The fastest way to reach us is by email.
info@sleepcalculator.today⏱️
Response time
We read every message and usually reply within 2–3 business days.
🐞
Found a bug?
Tell us your device, browser and what you were doing. A screenshot helps a lot.
02Send us a message
Quick answers
Is the sleep calculator free?
Yes. Every tool on the site is completely free and you never need to create an account.
Can you give me personal medical advice?
We're not able to give medical advice. If you have ongoing trouble sleeping, please speak with a doctor or sleep specialist.
Do you store the times I enter?
No. The calculators run in your browser, so your sleep times and settings stay on your device.
Can I suggest a new feature?
Please do! Many of our features started as suggestions from visitors. Choose “Feedback or idea” in the form.