How Lulla works

Lulla is a transparent planning tool. It combines age bands, plausible nap rhythms and the current awake time to produce a range—not a guarantee.

Inputs

• Age in months
• Time awake since
• Selected day rhythm
• Optional “more tired” or “poorly/teething” adjustment

Outputs

• Next nap or bedtime window
• Wake-window length
• Suggested nap-duration range when the next sleep is a nap
• Suggested wind-down time

Evidence and limitations

Official sleep guidance generally focuses on broad total sleep needs rather than exact wake windows by month. Wake-window tables are therefore practical heuristics and should be used alongside the baby’s cues and professional advice where needed.

No medical claims

Lulla does not diagnose, treat or prevent sleep or health conditions. It is general planning guidance.