Parents constantly search for clear answers about sleepwear, layers and temperature. This guide cuts through the noise with a breathable, structured approach rooted in natural fibres and Maison Elle’s pared-back philosophy.
A simple starting point
Babies sleep most comfortably when dressed in light, natural layers that match the room temperature. For many homes, the ideal range is 20–22°C.
Understanding room temperature
A cot often sits at a different temperature to the rest of the room. For the most accurate reading, place a thermometer on your baby’s mattress for a brief moment, then remove it once the number settles. This avoids relying on the thermostat alone.
Warm nights call for fewer layers. Cooler nights need gentler insulation. Consistency comes from adjusting thoughtfully rather than memorising rigid charts.
Newborn to 8 weeks
Newborns need steady warmth. Their temperature regulation is still developing, so focus on breathable layers supported by blankets.
Recommended layers:
- A sleeveless under-bodysuit with clips at the bottom
- A breathable long-sleeve organic cotton growsuit (zips are easier than buttons)
- Traditional swaddling with a lightweight bamboo or cotton stretch wrap
Maison Elle uses classic swaddling with a single organic bamboo wrap, currently in development. A demonstration video will be live soon.
Blankets provide the remaining warmth. Hats are never used for sleep.
8 weeks and older
Once babies sleep more deeply and move more freely, they cool faster overnight.
Recommended layers:
- A sleeveless or short-sleeve under-bodysuit
- A breathable long-sleeve cotton growsuit
- A safe sleep bag with an appropriate TOG rating
- A natural-fibre blanket layered as needed
Sleep bags stabilise temperature and help keep bedding in place.
Choosing the right layers
Underlayers: natural fibres such as cotton or bamboo.
Main layer: breathable, long-sleeve cotton growsuits regulate warmth without overheating.
Swaddles: best for under eight weeks. Avoid restrictive zip-style designs.
Sleep bags: select TOG based on room temperature. Adjust blankets around the TOG.
Blankets and safe, breathable layering
Use natural fibres only: cotton, bamboo blends or merino.
Safe blanket use:
- Keep blankets at chest height
- Let them rest naturally around your baby without restricting movement
- Place your baby near the bottom of the cot so they cannot slide underneath
How to tell if your baby is too hot or too cold
Signs of overheating: sweaty chest or back, damp clothing, flushed cheeks, restless sleep.
Signs of being cold: frequent repositioning, rolling onto tummy for warmth, early waking, cool torso to touch.
Why responsive layering matters
Night-to-night temperature shifts are normal. Maison Elle focuses on breathable materials, natural fibres and adjusting calmly based on what you observe, not on rigid, universal charts.
Maison Elle sleepwear in development
Our organic cotton growsuits, bamboo swaddles and safe sleep bags are in production. Each piece supports a breathable, beautifully understated sleep environment. Choose natural-fibre sleepwear for now and join the Maison Elle waitlist for early access to the Dream Collection.
FAQs: dressing your baby for sleep
How many layers should my baby wear?
A light under-bodysuit, a long-sleeve growsuit and either a swaddle (for babies under eight weeks) or a sleep bag with breathable blankets layered on top.
Should I use cellular blankets?
Yes. Cellular blankets have tiny holes that improve airflow and help prevent overheating. They are the safest, most breathable option.
Are organic cotton blankets better?
Yes. Organic cotton is predictable, breathable and easy to layer. Maison Elle blankets will sit at approximately 0.5 TOG, allowing you to build warmth gradually and safely. It is better to layer with organic cotton than to use wool, which can trap too much heat for young babies.
Should I avoid synthetic blankets?
Yes. Polyester and acrylic retain heat, reduce airflow and often cause sweating.
Which TOG rating should I choose?
Lower TOG for warm nights, higher TOG for cooler nights. Adjust with breathable layers rather than relying on a single heavy item.
Do newborns need hats for sleep?
No. Hats are never used for sleep.
When should I stop swaddling?
Stop when your baby shows signs of rolling. At that point, transition out of the swaddle and use a safe sleep bag instead.
Do I still need blankets with a sleep bag?
Yes. A sleep bag stabilises temperature; breathable blankets add warmth and gentle weight. Maison Elle will offer optional heavier cotton blankets that add gentle weight and security without overheating.
Building 12-hour nights: the Maison Elle method for predictable baby sleep
How to create a calm bedtime ritual for your baby
Signs your baby is overtired and how to reset