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Three months is when a real daily rhythm first becomes possible. Here's the complete sleep schedule for 3-month-olds — wake windows, nap structure, a sample daily timetable, and the most common challenges explained.

Sleep training teaches babies to self-settle at sleep onset — the evidence shows it's safe and effective from 4 months. Here's every main method compared, the science on safety, and the prerequisites that make it work.

"Sleeping through the night" means 5–6 continuous hours in clinical terms. Most babies reach this by 3–4 months. Here's the honest timeline, the 4-month regression explained, and what the evidence says actually helps.

Newborns don't sleep on schedules — they follow biological rhythms that gradually align with the 24-hour day. Here's the complete guide to newborn sleep by age, wake windows, safe sleep rules, and what actually helps you get more rest.

Sleep sacks keep babies safe and warm without loose blankets — but choosing the right one means understanding TOG ratings, design types, and what changes at each stage. Here's the complete guide.

What your baby wears to sleep affects both safety and comfort. Here's the complete guide to baby sleepwear — by age, room temperature, and what to look for in every piece.