Terms of Use

First52 is an educational website operated by Ameti One LLC. By using it, you agree to these terms.

Educational content, not medical advice

Everything on First52 — week pages, sleep ranges, wake-window calculations, milestone notes — is general educational information. It is not medical advice, a diagnosis, or a treatment plan, and it does not create any clinician–patient relationship. Babies develop and sleep on individual timelines. Always consult your pediatrician or another qualified clinician with questions about your child's sleep, feeding, health, or development, and never delay seeking care because of something you read here.

The calculators

The wake-window tools estimate typical ranges from published guidance and common practice ranges. They are planning aids, not instructions: your baby's sleepy cues outrank any number this site produces.

No analytics or advertising in this version

First52 launches with no analytics, no advertising, and no affiliate links. If a future version adds any of these, these terms and the privacy policy will be updated before they appear.

Intellectual property

Site text and design are © Ameti One LLC. You may share links and quote briefly with credit. Sleep-duration recommendations and milestone checklists referenced here belong to their publishers (AASM, National Sleep Foundation, CDC) and are cited, not reproduced wholesale.

Accuracy and liability

We work to keep the information accurate and sourced, but we make no warranty that it is complete or current for your situation. To the extent permitted by law, Ameti One LLC is not liable for decisions made in reliance on this site.

Changes

These terms may be updated; the current version will always be posted here. This version is dated November 12, 2026.