Dropping from 2 Naps to 1 Nap
The short answer
Most babies transition from two naps to one between 12 and 18 months, with the average being around 14-15 months. This is one of the trickiest nap transitions because it requires a significant increase in wake time. Be patient - this transition can take 2-4 weeks and often involves some rough days.
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By Age
What to expect by age
Some babies begin showing signs of readiness around 10-12 months, but this is often a false alarm caused by the 12-month sleep regression or developmental leaps like walking. If your baby suddenly fights one nap but is under 12 months, try adjusting wake windows slightly before dropping a nap entirely. Most sleep experts recommend waiting until at least 12 months to make this transition.
Around 12-14 months, some babies genuinely begin to outgrow the two-nap schedule. Signs include consistently taking 20+ minutes to fall asleep for one or both naps, napping well for one nap but refusing the other, or having bedtime pushed too late. If these signs persist for 2+ weeks, your baby may be ready. However, many babies this age do better staying on two naps a bit longer.
This is the most common window for the 2-to-1 transition. The single nap usually settles around midday (11:30 AM-1:00 PM) and lasts 1.5-3 hours. During the transition, you may need to alternate between one-nap and two-nap days depending on how your toddler slept the night before. Move bedtime earlier on one-nap days to prevent overtiredness.
By 18 months, most toddlers are fully established on one nap. If your child is still on two naps and sleeping well at night, there is no rush to change. However, if nighttime sleep is suffering (taking a long time to fall asleep at bedtime, or waking very early), it may be time. The one-nap schedule should feel settled by now, with a consistent midday nap.
What Should You Do?
When to take action
- Your baby is between 12-18 months and consistently fights one of their two naps for 2+ weeks
- Your baby takes a long time to fall asleep for one or both naps, suggesting they can handle longer wake windows
- During the transition, some days your toddler needs two naps and other days manages on one - this back-and-forth is completely normal
- Your toddler is a bit crankier in the late afternoon during the transition - an earlier bedtime helps bridge this gap
- Your toddler seems chronically overtired after dropping to one nap and cannot adjust after 3-4 weeks
- Nighttime sleep significantly worsens and does not improve within 2-3 weeks of the transition
- Your baby under 12 months is refusing all daytime sleep
- Your baby is excessively sleepy, seems lethargic, or is very difficult to wake from sleep
- Sleep changes are accompanied by other concerning symptoms like weight loss, fever, or behavioral regression
Sources
Related Resources
Trust your instincts. If something feels wrong, reach out to your pediatrician.
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Related Sleep Concerns
Dropping from Two Naps to One
Most babies transition from two naps to one between 12-18 months. Signs include consistently fighting or skipping the second nap, taking very long to fall asleep for naps, or bedtime becoming a battle. The transition usually takes 2-4 weeks and some crankiness is normal during the adjustment.
Wake Windows by Age
Wake windows are the periods of time your baby can comfortably stay awake between sleep periods. They naturally lengthen as your baby grows, from as short as 45 minutes in newborns to 5-6 hours in toddlers. Getting wake windows right is one of the most impactful things you can do for your baby's sleep - too short and they are not tired enough, too long and they become overtired.
Baby Fighting Naps or Refusing to Nap
Nap resistance is one of the most common struggles parents face and is usually a sign that your baby is either overtired, undertired, or going through a developmental leap rather than a sign of a medical problem. Adjusting wake windows and creating a brief pre-nap routine are the most effective strategies.
12-Month Sleep Regression
The 12-month sleep regression is driven by major developmental changes - many babies are learning to walk, experiencing separation anxiety, and developing a stronger will. Your baby may start fighting bedtime, waking more at night, refusing naps, or waking earlier than usual. This regression typically lasts 2-6 weeks. The most common mistake is dropping to one nap too early - most 12-month-olds still need two naps. Maintain consistent routines and this phase will pass.
How Long Should Baby Be Awake Between Naps?
The ideal awake time between naps (called a "wake window") increases as your baby grows. Newborns may only handle 45-90 minutes awake, while toddlers can manage 4-6 hours. Getting wake windows right is one of the most effective ways to improve nap quality, because both too-short and too-long wake times lead to poor sleep.
Is a Bath Before Bed Really Necessary?
A nightly bath is not medically necessary and some babies with sensitive skin do better with less frequent bathing. However, a warm bath can be a powerful sleep cue because the subsequent body temperature drop triggers melatonin production. If you include a bath, keep it calm and warm rather than stimulating.