When you’re preparing for your new baby’s arrival, it may be tempting to fill the wardrobe with all kinds of adorable outfits. But when it comes to practicality, comfort, and—most importantly—safe sleep, simple is best. In those first few months (and beyond), there are only a few essential clothing items your baby truly needs: bodysuits, bundlers, and babygros.
These wardrobe staples aren’t just easier for dressing and changing—they’re also much better for your baby’s sleep, comfort, and overall safety.
Bodysuits are ideal for layering under wraps, bundlers and safe sleep bags. Look for styles that:
You’ll need at least 12 bodysuits, and it’s worth buying them in multipacks to keep costs down.
Tizzies Tip: Avoid suits that aren’t 100% cotton—some popular brands, like Bonds Wondersuits, contain polyester blends that may cause babies to sweat and may even trigger eczema flare-ups.
Babygros (also known as all-in-ones or onesies) and bundlers make dressing and changing a breeze. Babygros usually have feet, long sleeves, and either snap buttons or a zip down the front, while bundlers are similar but open at the bottom—perfect for quick nappy changes overnight.
Choose designs with:
Babies tend to sleep better in bundlers and babygros than in separates, and they’re much more comfortable when lying down. Two-piece outfits may look cute but often ride up, bunch at the waist, and may disturb sleep.
Bundlers are especially fantastic for wearing at home, and while they’re a favourite for overnight, they’re certainly not limited to nighttime use. They make nappy changes easier—particularly for dads, who often appreciate the simplicity of no zips or press studs during late-night changes.
I recommend avoiding two-piece sets for any sleep until after 18 months of age.
Safe sleep is about more than where your baby sleeps—it’s also about what they’re wearing.
Keep sleepwear simple: a bodysuit under a babygro or bundler, and then a wrap and/or safe sleep bag over the top.
You might be tempted to use singlets and pyjamas for day or night sleeps —but these may ride up and expose your baby’s back or tummy to the cold. For babies under two, the best sleep setup includes:
This setup helps maintain consistent warmth across your baby’s core and keeps the nappy securely in place.
Tizzies Tip – remember to refer to my World Famous Bedding guide for more information about dressing your baby for sleep, sleep bags, blankets and more.
Even during the day, it’s a good idea to dress your baby or toddler in clothing that supports sleep and comfort. When it’s time for a sleep:
One-piece outfits like rompers or overalls also make nappy changes easier and help keep the nappy where it should be.
For your baby’s first few months, aim to have:
By keeping clothing simple, breathable, and practical, you’ll help support your baby’s sleep, comfort and safety right from day one.
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