Newborns aren’t great at regulating their own body temperature, so dressing them appropriately is key to keeping them comfortable—especially in New Zealand’s unpredictable climate.
That’s why merino wool is one of the best fabric choices for babies. Unlike cotton or synthetic fabrics, merino is breathable, moisture-wicking, and temperature-regulating, making it the perfect choice year-round. Whether your baby is born in the middle of winter or during the summer heat, merino provides comfort, warmth, and peace of mind.
Why Choose Merino?
Not all fabrics are created equal, and when it comes to newborns, what they wear matters. Merino is different from cotton and synthetics because it:
- Regulates temperature naturally – keeps babies warm when it’s cool and cool when it’s warm
- Breathes and wicks moisture – prevents dampness and overheating
- Feels soft and gentle on sensitive skin – no itchiness or irritation
- Reduces the risk of overheating – unlike fleece, which traps heat
- Doesn’t need frequent washing – merino is naturally antibacterial and resists odours
Merino isn’t just warm, it’s smart fabric that adjusts to your baby’s needs, making it one of the best choices for newborns.
Dressing Your Baby for the Day: Simple & Stress-Free
Daytime dressing is easy just follow the simple rule: one extra layer than what you're wearing. If you’re in a t-shirt, your baby might need a long-sleeved bodysuit. If you’re adding a jumper, they may need another layer too.
Avoid fleece and synthetic fabrics – these can trap heat, causing your baby to overheat. Instead, opt for natural, breathable layers like merino that keep your baby comfortable without the risk of overheating.
Dressing Your Baby for Sleep: Room Temperature is Key
The ideal sleeping temperature for babies: 18-20°C and nighttime dressing can feel more confusing, especially when temperatures drop in the early morning hours. Instead of focusing on the season, dress your baby based on room temperature for safe and comfortable sleep.
Room temperature 20-22°C
- A merino singlet or bodysuit as a baselayer
-
A merino sleep sack
Room temperature 18-20°C
- A merino singlet or bodysuit as a base layer
- A full-length onesie over top
-
A merino sleeping bag or suit
Room temperature 16-18°C
- A merino singlet or bodysuit as a base layer
- A full-length onesie over top
- Merino socks
- A merino sleeping bag or suit
Merino is perfect for sleepwear because it helps regulate body temperature and prevents overheating, a key factor in safe sleep. Please note these are guidelines only!
Merino: An Investment That Lasts
Yes, merino is more expensive upfront, but it lasts longer, requires fewer layers, and is easy to care for. Instead of needing multiple cotton layers, one good merino piece can do the job.
How to make merino more affordable:
- Look for sales - many NZ brands offer discounts throughout the year
- Buy second-hand - as long as items come from a smokefree home
- Wash with care use wool safe detergent and avoid fabric softeners
Preparing for Baby? Get Our Free Birth Bag Checklist!
- Getting ready for your newborn’s arrival? Download our free Birth Bag Printable HERE to make sure you have all the essentials packed—including warm, breathable layers for your baby!
- Want to learn more about newborn care, breastfeeding and postpartum recovery? Join our 4th Trimester workshop HERE for expert guidance and support.
Final Thoughts
Dressing your baby for the day? Keep it simple - one more layer than you. Dressing your baby for sleep? Think about the room temperature and choose breathable fabrics. With merino, you can rest easy knowing your baby is comfortable, no matter the season.