You made it through the newborn haze, survived the 4-month regression, and navigated the 8-10 month separation anxiety. Now your baby is a toddler, walking, talking, and fighting bedtime like they are personally offended by the concept of sleep. This guide covers everything Australian parents need to know about toddler sleep from 12 to 36 months: age-based schedules, the 2-to-1 nap transition, sleep regressions at 12, 18, and 24 months, bedtime battles, the cot-to-bed move, and safe sleep guidelines from Red Nose Australia. The schedules below follow wake windows that work for most toddlers, but every child is different. Looking for the first year? Our complete schedule guide covers 0-12 months. If your toddler is happy and alert when they are awake, you are probably on the right track.
Between 12 and 36 months, toddlers need 11 to 14 hours of total sleep in a 24-hour period, according to the Raising Children Network. This breaks down into 10 to 12 hours overnight and a daytime nap of 1 to 2 hours. The 2-to-1 nap transition happens between 13 and 18 months for most children, and it rarely goes smoothly.
By 12 months, your toddler's circadian rhythm is mature. They produce melatonin at the right times, their sleep cycles have lengthened to about 90 minutes (similar to an adult's), and they can connect sleep cycles without help, if they have learned how. The challenge shifts from biology to behaviour. Toddlers now have object permanence (they know you exist even when you leave the room), language skills (they can call out for you by name), and opinions. Strong ones. About everything, including bedtime.
Wake windows stretch as your toddler grows. At 12 months, most toddlers can handle 3 to 4 hours of awake time between sleeps. By 18 months, that extends to 4.5 to 5.5 hours. By 2 years, many can manage 5 to 6 hours before needing a nap or bedtime. The thing to remember: a toddler who is under-tired will fight sleep. A toddler who is over-tired will also fight sleep, but louder. Watch for eye-rubbing, zoning out, or crankiness as your cues.
Sleep needs by age (Raising Children Network): 12-15 months: 11-14 hours total (10-12 night, 1-2 nap). 15-24 months: 11-14 hours total (10-12 night, 1-2 nap). 2-3 years: 10-13 hours total (10-12 night, 0-1 nap). If your toddler is within an hour of these ranges and happy during the day, the exact numbers are not worth losing sleep over.
At 12 to 15 months, your toddler is likely still on two naps, though the afternoon nap may be getting shorter and harder to settle. Wake windows sit around 3 to 4 hours. The 2-to-1 nap transition often starts showing signs during this window: your toddler may start refusing the afternoon nap or taking 45 minutes to fall asleep for it. If this happens consistently for two weeks or more, they may be ready to drop to one nap.
Night wakings are still common at this age. Separation anxiety peaks again around 12 months, and motor milestones like walking and climbing can send sleep sideways for a week or two. If your toddler wakes at night, keep responses short and boring: a quick reassurance, a pat, leave. The less interesting the night waking, the faster it passes.
12-month sleep regression: This regression is driven by walking, first words, and a fresh wave of separation anxiety. It usually lasts 1-3 weeks. Do not introduce new sleep props during a regression. Respond briefly, keep lights off, and give plenty of daytime practice time for new motor skills. If it drags past 3 weeks, the issue is probably a schedule that needs tweaking rather than the regression itself.
By 15 to 18 months, most toddlers have dropped to one nap. If your toddler is still on two naps at 15 months and they are working (both naps settling easily, bedtime not creeping past 8:30 PM), there is no rush to drop the second nap. The transition window is 13 to 18 months, and every child gets there in their own time.
During the transition, you will have some two-nap days and some one-nap days. On one-nap days, offer an early bedtime (as early as 6:00 PM if needed) to bridge the gap. Overtired toddlers sleep worse, not better. Keeping them up late to build sleep pressure backfires almost every time.
Night wakings at this age are often linked to the 18-month sleep regression, which can start as early as 15-16 months. Language explosions, independence battles, and separation anxiety all peak around now. A consistent bedtime routine is your best defence: same order every night, same calm vibe.
Early waking (before 6 AM): If your toddler consistently wakes before 6 AM and is not hungry, check the room first. Light creeping through curtains is the most common culprit. Blackout blinds help, and leaving them in the cot until 6 AM (even if they are awake and chatting) teaches the body clock that this is still night time. Also check the nap schedule: an overly long nap or a bedtime that is too early can push wake time earlier in toddlers over 15 months.
[PLACEHOLDER: Content to be injected: wake windows for 18–24 months, sample daily schedule, the 18-month regression deep dive (language explosion, independence, separation anxiety), how it differs from the 4-month regression]
[PLACEHOLDER: Content to be injected: wake windows for 2–3 years, sample daily schedule, quiet time transition strategy, signs your toddler is ready to drop the nap, managing the 'no nap' days]
[PLACEHOLDER: Content to be injected: what causes each regression (motor milestones, language, separation anxiety), how long each lasts, practical strategies for each one, when it's NOT a regression (illness, teething, schedule issue)]
[PLACEHOLDER: Content to be injected: why toddlers fight bedtime (FOMO, testing boundaries, imagination), the 'toddler stall' tactics, firm-but-warm bedtime routine, boundary-setting strategies, dealing with curtain calls]
[PLACEHOLDER: Content to be injected: signs of readiness (climbing out = safety trigger), ideal age range (2.5–3.5 years), how to prepare the room, bed rail and safety setup, first week expectations, handling the new-found freedom]
[PLACEHOLDER: Content to be injected: cot safety (mattress lowered, no bumpers), bed safety after transition, room temperature guidance, what Red Nose says about toddlers, sleep product safety standards in Australia]
[PLACEHOLDER: Content to be injected: 5–7 FAQ items covering early waking, nap refusal, night terrors vs nightmares, dummy/pacifier weaning, when to seek professional help (Tresillian/Karitane)]
