
Decreasing awake windows means shortening the amount of time your baby stays awake between sleeps so their nervous system can cope more comfortably with sleep pressure.
This does not mean going backwards or removing structure. It means responding to signs that your baby is struggling with their current awake time and adjusting sleep support accordingly.
Reducing awake windows is often helpful when sleep disruption is driven by overtiredness rather than undertiredness.
Common signs include:
Increased night waking
Difficulty settling despite clear tired cues
Short naps followed by irritability
Early morning waking that worsens over time
False starts shortly after bedtime
In these situations, pushing awake time further often makes sleep more fragmented rather than more settled.
Understanding under vs overtired is key before making any adjustments, as the signs can look similar but require very different responses.
Short naps are not always caused by undertiredness. In many cases, overtired babies struggle to stay asleep because their nervous system is overstimulated.
If naps suddenly shorten and your baby wakes unsettled, upset, or unable to resettle, reducing awake windows may help naps lengthen again.
This is particularly relevant when catnapping appears alongside irritability or poor overnight sleep rather than as a long-standing pattern. More detail on this is covered in catnapping.
Early morning rising is often blamed on undertiredness, but overtiredness is just as common a cause.
If your baby:
Wakes earlier and earlier
Appears tired but cannot resettle
Had long or stretched awake windows the day before
Reducing awake windows, particularly before bedtime, can help rebalance sleep pressure and support later mornings.
This pattern is explored further in early morning rising, which looks at early wakes in context rather than in isolation.
False starts and too much awake time
False starts, where your baby wakes shortly after being put to bed, are very often linked to overtiredness rather than insufficient awake time.
If bedtime is difficult and your baby wakes crying within the first hour, stretching awake windows further usually worsens the problem. In these cases, bringing bedtime earlier or slightly reducing awake time can be far more effective.
This pattern is explored in false starts, which explains why they happen and how to respond appropriately.
A true split night occurs when a baby or child wakes overnight and is calm, alert, and ready to be awake for an extended period of time. This is a classic sign of undertiredness and usually reflects too much daytime sleep or awake windows that are not long enough for the child’s current sleep needs.
Overtiredness can sometimes look like a split night, but it is not the same thing.
When a baby is overtired overnight, they are typically:
Dysregulated rather than calm
Upset, frustrated, or emotional
In and out of sleep rather than fully awake
Struggling to resettle despite clear tiredness
In these cases, the overnight waking is not caused by undertiredness or excess energy, but by a nervous system that is overloaded and unable to settle.
True split nights are addressed by increasing appropriate awake time or adjusting day sleep, whereas overtired overnight disruption is often supported by decreasing awake windows, protecting naps, or bringing bedtime earlier.
This distinction is explored further in split nights, which explains how to identify a true split night versus overtired overnight dysregulation and why the response differs.
Babies often need shorter awake windows during:
Growth spurts
Illness or recovery
Developmental regressions
Nap transitions
Periods of poor overnight sleep
During these times, holding or slightly reducing awake windows can support regulation and prevent sleep disruption from escalating.
If you suspect awake windows are too long:
Reduce by 10–15 minutes rather than large chunks
Adjust one window at a time
Give changes several days before reassessing
Prioritise the last awake window of the day
Small, thoughtful changes are far more effective than dramatic shifts.
Avoid overcorrecting
Constantly changing awake windows day to day can create more instability rather than improvement.
Look for patterns over several days rather than reacting to one rough night or short nap. Consistency allows sleep pressure to rebalance naturally.
Before decreasing awake windows, consider:
Total sleep across 24 hours
Nap structure and consistency
Overnight sleep quality
Developmental stage
Awake windows are one piece of the puzzle, not the entire solution.
As sleep needs shift, there will be times when your baby needs more awake time rather than more. When awake windows are better matched to your baby’s development, naps often stabilise, nights feel less fragmented, and early mornings become easier to manage.
Having guidance through these sleep changes can make this stage far less overwhelming. The 5–24 Month Infant and 2-4 Year Toddler Course supports families through evolving awake windows, nap changes, night waking, and regressions, helping you understand when to hold steady, when to pull back, and how to support sleep as your baby grows.
As your baby grows, their need for swaddling will change. Some babies transition out earlier, others later, and both can be completely normal.
If you want guidance that grows with your baby beyond the newborn stage, the 5–24 Month Infant Course supports families as sleep continues to evolve through infancy and to



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