Plan sleep and wake times around 90-minute cycles. Built and operated by Digimarket Group SIA.
Important: This tool provides educational estimates only and is not medical advice. Sleep needs vary by age, health, and lifestyle. Consult a qualified clinician for sleep disorders or health concerns.
Who we are
Digimarket Group SIA builds lightweight utility websites that help people get a job done quickly in the browser
without forcing an account signup for basic use. Sleep Calculator focuses on a reliable sleep cycle calculator experience
with clear explanations so you can trust what you see on screen.
We prioritize speed, readability on mobile, and transparent policies. Ads may appear on some pages to
support free access; they should never prevent you from using the core tool. Static crawlable pages
(About, Privacy, Terms, Disclaimer, Guides, FAQ) sit alongside the interactive app so search engines and
visitors can understand the product without relying solely on JavaScript.
Editorial standards
Practical, original explanations tied to how the tool actually works.
Clear limitations and disclaimers, especially where estimates touch health, money, or legal topics.
HTTPS by default and no under-construction placeholders on public pages.