The Possums sleep approach (NDC): what it is and what research shows

The Possums approach is an Australian way of thinking about baby sleep, developed by Dr Pamela Douglas and known in research as Neuroprotective Developmental Care (NDC). It is deliberately not a sleep training method. Instead of teaching babies to settle themselves, it focuses on responding flexibly to your baby, feeding freely, giving your baby an interesting day, working with their body clock and helping you, the parent, cope with the ups and downs of infant sleep. This guide explains what the approach claims, from its creators' own materials, and separately what research has actually measured.

What is the Possums sleep approach?

According to Possums' own description of its science, the approach aims to work with a baby's evolutionary biology "not against it". It supports babies' needs for closeness, frequent flexible feeding and responsive care, and treats sleep as one of several connected areas alongside breastfeeding, sensory-motor development, crying and parent mental health.

Its main ideas, as described in Possums materials and the research papers about it:

• Cued care. Respond to your baby's cues in a flexible way. A study of the program describes it as responding to infant cues flexibly to calm the baby's nervous system.
• Frequent, flexible feeding. Feeding is part of how babies are comforted, not something to separate from sleep.
• Sensory-motor nourishment. Possums encourages families to plan days out of a low-stimulation home, including time in nature. Its professional course talks about meeting babies' needs for "environmental enrichment".
• Working with biology. Possums says it has applied circadian medicine (the science of the body clock) to infant sleep since 2011. An independent evaluation describes the aim as helping the baby's biological sleep regulators work well to protect against excessive night waking.
• Parent wellbeing. The program uses acceptance and commitment therapy (ACT) to help parents manage anxious or negative thoughts about sleep, according to the paper on its UK adaptation.
• No sleep training. The NDC Institute says its Sleep, Baby & You course "does not advocate any form of sleep training" and doesn't teach self-settling strategies or tired cues.

Where does the Possums approach come from?

Dr Douglas developed it in a GP clinic setting in Brisbane, according to the UK adaptation paper. In a 2014 paper, she and Koa Whittingham proposed it as a "new paradigm" for sleep from birth to 6 months, arguing against the then-dominant behavioural approach of delayed response to cues, feed-play-sleep routines and teaching parents about "tired cues" and "overstimulation". It draws on developmental psychology, lactation science, evolutionary science, neuroscience and ACT.

Today, Possums describes itself as an Australian social enterprise selling parent programs, with a Baby Sleep program for 0–12 months and support up to the end of toddlerhood. In the UK, Durham University adapted it into a resource called Sleep, Baby & You for NHS practitioners.

What age is the Possums approach used from?

From birth. The 2014 paper focused on birth to 6 months, the Baby Sleep program covers 0–12 months, and Possums says its programs support families up to about 3 years.

This differs from sleep training methods, which Australian and UK sources generally reserve for babies over 6 months. A systematic review by Douglas and Hill argued that behavioural sleep interventions in the first 6 months hadn't been shown to reduce crying, prevent later problems or protect against postnatal depression, and could have unintended effects such as more crying and earlier weaning.

How do you follow the Possums approach?

Possums' public pages don't set out a step-by-step night-time plan; the detailed content is in its programs. Based on what its published materials and research describe, the approach looks more like a set of habits than a routine:

1. Reset expectations. The UK adaptation aims to help parents recalibrate what to expect from normal infant sleep.
2. Respond to your baby's cues flexibly, including feeding, cuddling or holding, rather than following a fixed settling script.
3. Feed freely. Frequent, flexible feeding is part of comfort and sleep.
4. Make the day interesting. Plan outings and time outdoors rather than keeping your baby in a quiet, low-stimulation home all day.
5. Help the body clock. Mainstream services agree on this one: Australia's Tresillian suggests natural daylight during the day and dim lights at night to help babies develop a day-night rhythm.
6. Experiment. The course encourages parents to "discover what works for their own unique family" and to keep everyone's sleep in sync.
7. Look after your own mind. ACT-based strategies aim to help you notice worried thoughts about sleep without being ruled by them.
8. Keep every sleep safe (see below).

What does a typical first week look like?

There's no defined first-week pattern, because the approach doesn't set sleep targets or a settling schedule. Parents in the 2018 evaluation described it as "challenging and life changing", and reported reduced stress and less concern about night waking, short daytime naps and long settling times. That suggests the early change many families notice is in how they feel about their baby's sleep, as much as in the sleep itself.

Does the Possums approach work? What the evidence says

The research is growing but limited. Here's what each study measured:

Some things to weigh up:

• Sleep outcomes. In the Öztürk study, the comparison with usual care, Possums produced "equivalent" sleep results while advocating a more cued response; the clearest difference was sustained breastfeeding.
• Study design. Most evaluations are small, uncontrolled or exploratory. We didn't find a large randomised trial showing it improves sleep more than other approaches.
• Who did the research. Several papers were co-authored by Dr Douglas, who has declared interests including royalties from her book and offering professional education in the approach. The 2018 evaluation was carried out by an independent infant sleep researcher, though Dr Douglas was a co-author.
• The other side. Trials of behavioural methods in older babies, such as Gradisar and colleagues' 2016 trial, found sleep benefits without signs of harm to attachment or behaviour.

So the honest summary is: the Possums approach appears acceptable to parents and may support breastfeeding and parent wellbeing, but whether it improves babies' sleep more than other approaches hasn't been shown.

Who does the Possums approach suit, and who doesn't it suit?

It may suit families who:

• don't want to sleep train, or have a young baby for whom sleep training isn't advised
• are breastfeeding and want to feed their baby to sleep without worrying about "bad habits"
• feel anxious about sleep and want help with the parent side of it
• like getting out of the house with their baby

It may suit you less if:

• you want a structured plan with clear steps and timelines
• your baby is older and you're keen on a defined method such as bedtime fading or gradual retreat
• you'd prefer free, mainstream advice; much of Possums' detailed content is in paid programs, while services such as Pregnancy, Birth and Baby offer free responsive settling advice that includes tired signs and helping babies learn to settle

What safety rules apply?

The Possums approach is about how you respond, not where your baby sleeps, so the usual safe sleep advice applies to every sleep. Australia's Red Nose recommends sleeping your baby on their back, with head and face uncovered, smoke-free, in their own safe sleep space in the same room as a parent or caregiver for at least the first 6 months. Australia's Red Nose does not recommend co-sleeping. NICHD Safe to Sleep advises a firm, flat surface with nothing soft in the sleep area, room-sharing without bed-sharing, and says couches and armchairs are never safe places for babies to sleep. If you fall asleep while feeding in bed, NICHD says to put your baby back in their own sleep space as soon as you wake. See bed-sharing and safe sleep.

Get help straight away if your baby seems unwell. Following the NHS urgent help guide, call 999 if your baby is struggling to breathe, has blue, grey or blotchy skin or lips, is floppy or hard to wake, has a seizure, has a weak, high-pitched or continuous cry, or is under 3 months with a temperature of 38°C (100.4°F) or higher. If crying or exhaustion is overwhelming you, call your health visitor, or NHS 111 or Samaritans on 116 123. If you have thoughts of harming yourself or your baby, call Samaritans on 116 123 or 999 now.

How does Possums compare with other approaches?

For every option side by side, see the sleep training overview, and for what's normal in the early weeks, see newborn sleep patterns.