Babies typically start sleeping through the night (defined as 6-8 hours without needing feeds or comfort) around 6-9 months old, though every child develops at their own pace.

Age Milestones

Most newborns wake frequently for feeds every 2-4 hours due to small stomachs, with gradual improvements by 3 months where some manage 5-8 hour stretches. By 6 months, 50-75% of babies can sleep longer without night wakings, as they no longer need overnight calories, but 25-38% still wake. Full consistency often hits at 8-9 months or even 12 months for many.

Factors Influencing Sleep

  • Physiology : Babies' sleep cycles mature over time, shifting from short REM-heavy bursts to deeper non-REM sleep.
  • Feeding : Exclusive breastfeeding or formula needs drop after 6 months, enabling longer sleeps.
  • Habits : Consistent bedtime routines, dark rooms, and avoiding overstimulation help, but regressions occur during teething, illness, or developmental leaps.
  • Individual Differences : Premature babies or those with reflux may take longer; consult a pediatrician for concerns.

Parent Experiences

Forum discussions like Reddit's r/NewParents reveal realistic timelines: many report 9-12 months for reliable nights, with stories of 18-month regressions but ultimate improvement by toddlerhood. One parent shared, > "Mine didn't until 10 months, then boom—full nights ever since. Hang in there!" Common advice includes sleep training methods like Ferber after 6 months, but only if developmentally ready.

Tips to Encourage Better Sleep

  1. Establish a calming pre-bed ritual: bath, book, feed, bed.
  2. Differentiate day/night with bright days and dim evenings.
  3. Watch wake windows: 1-2 hours for young infants, up to 3-4 by 6 months.
  4. Avoid night props like rocking if capable of self-soothing.
  5. Track patterns with apps for trends.

Recent trends in 2025 parenting forums emphasize gentle, responsive methods over strict cry-it-out, with many praising "pick-up-put-down" for sensitive babies. Patience pays off—most families see solid sleep by age 1.

TL;DR : Expect 6-9 months on average, but up to 12+ for some; focus on routines.

Information gathered from public forums or data available on the internet and portrayed here.