LS Little Sleep PlannerFlexible baby sleep tools

Reference guide

Baby sleep by age

This table separates evidence-backed 24-hour sleep totals from practical wake-window and nap-count estimates.

Safe sleep comes first.For every nap and night sleep, follow current pediatric safe-sleep guidance. Place babies on their backs on a firm, flat, level sleep surface with only a fitted sheet. A schedule never overrides feeding, health, or safety needs.
AgeTotal sleepCommon nap patternPlanning wake range
0-3 monthsHighly variable; no AASM consensus rangeSleep distributed around the clockDo not force a schedule
4-5 months12-16 hours3-4 napsAbout 1.25-2.5 hours
6-7 months12-16 hours2-3 napsAbout 2-3.25 hours
8-10 months12-16 hoursUsually 2 napsAbout 2.5-4 hours
11-12 months12-16 hoursUsually 2 napsAbout 3-5 hours
13-18 months11-14 hours1-2 napsAbout 3.5-5.5 hours
19-24 months11-14 hoursUsually 1 napAbout 5-6 hours

Why the columns have different authority

The total sleep ranges come from a formal expert consensus. Nap counts and wake windows are descriptive planning heuristics drawn from common developmental patterns and should not be treated as health requirements.

Corrected age

Parents of babies born prematurely may be advised to use corrected age for some developmental expectations. Ask your pediatrician how corrected age should apply to your child's sleep and feeding pattern.