A bonnet is one of those small baby pieces that looks sweet and also does a real job. It keeps sun and wind off a baby's head and ears, and it finishes an outfit. But it is not right for every moment, so here is a simple guide to when to use one and how to keep it safe.
What Is a Baby Bonnet?
A baby bonnet is a soft cap that covers the head and often the ears, usually fastened with a gentle tie or an elastic edge under the chin. Compared with a regular hat, it sits closer to the head and stays put better on a wiggly baby. If you are comparing styles, our guide to baby hats and how to choose one covers the other options.
When a Bonnet Helps
- Sunny walks: a bonnet gives shade to the face and ears. Babies under six months should also be kept out of direct sun where possible.
- Breezy days: it keeps wind off small ears.
- Photos and outings: a matching bonnet and romper set is an easy, put-together look.
When to Skip It
- Sleep: never leave a bonnet on a sleeping baby. Loose fabric and ties near the face are not safe in a crib or car seat nap.
- Warm rooms and cars: babies lose heat through the head, so take it off indoors. See the signs of baby overheating to watch for.
- Anywhere it covers the eyes or slips down: if it keeps sliding, it is the wrong size.
How to Choose a Safe Bonnet
- Soft, breathable fabric. Cotton is gentle on skin and easy to wash. Our fabric guide explains the differences, and you can see our favorites in organic cotton baby clothes.
- Short, soft ties or elastic. Choose a snug fit you can slide one finger under. Avoid long strings.
- Flat seams. Seams that sit flat will not press on a baby's head.
- The right size. It should stay on without leaving red marks.
Two Easy Bonnet Sets
If you like a matched look, these sets pair the bonnet with a romper so there is nothing extra to coordinate:
- Pink Eyelet Lace Collar Romper & Bonnet Set – a cotton bubble bodysuit with a matching bonnet.
- Yellow Gingham Duck Romper Dress & Bonnet Set – a light, sleeveless set for warm days.
Care Tips
Wash bonnets gently and air dry to keep their shape. For mealtime marks, try these natural stain removal tips.
The Bottom Line
Use a bonnet for sun and wind while you are out, take it off when you come inside, and never use it for sleep. Pick soft fabric and a snug, comfortable fit.