Contact Us
We genuinely want to hear from you. Whether you've spotted a typo or want to discuss a partnership, drop us a message below.
What to contact us about
- A correction to an article
- A calculator that gave an unexpected result
- A topic you'd like us to cover
- A press or partnership enquiry
- An accessibility issue
Response Time
We aim to reply to all enquiries within 3 working days. We read every message that comes through, and we do our best to reply to them all.
Postal Address
Health Hub Academy43 Highwalls Avenue
Dinas Powys, Vale Of Glamorgan
Wales, CF64 4AQ
United Kingdom
Before you email, your question may be answered here:
Yes — all six tools are completely free to use, forever. No login, no subscription, no hidden charges.
Please get in touch by email to discuss licensing or embedding options.
Please email us with the specific input values and the output you received. We take accuracy very seriously and will investigate promptly.
We cannot provide individual medical or sleep advice. For personal sleep health concerns, please consult your GP (UK), primary care physician (US), or a qualified sleep specialist.