
22/08/2025
Some babies may be tired for an extended period of time before they’re actually ready to fall asleep. Just like some adults start feeling drowsy (and grumpy!) at 8pm but don’t fall asleep until midnight.
Our little ones can sustain a prolonged period of tiredness before their sleep pressure is actually high enough for them to be ready for sleep.
If you’ve been following us for a while, you will know we regularly talk about the biological drive for sleep— “sleep pressure”. Our little ones can only fall asleep when their sleep pressure is high enough.
So, while our little one may become cranky, irritable and fussy - that doesn’t always mean they’re ready for sleep.
This is why you will never hear us using the term ‘tired signs’ here because in reality, they encourage parents to read their babies’ behaviour through only a sleep lens which can lead us to miss other needs our baby may be communicating.
So next time settling feels impossible, ask:
✔️ Is this a cue for sleep or is it a cue for a need for stimulation (and a chance for adventure?)
✔️ Are they fussing because their sleep pressure simply isn’t high enough and I’m trying to put them down when they aren’t tired enough?
You can experiment with sensory-motor adventures to keep your little one calm until their sleep pressure peaks and their body is ready to naturally drift off to sleep.
Remember, some babies may seem tired long before enough sleep pressure has built up for them to actually fall asleep. Your baby’s brain needs enough biological sleep pressure to truly settle into sleep.
We hope this post helps in some small way. To help us get this information to more parents who need it, we’d love it if you’d SHARE this post to your story, SEND it over to your partner or mum’s group, and don’t forget to SAVE it to come back to later.