Choosing the perfect baby blanket isn’t just about picking a cute pattern, getting the right size for its intended use is essential for your little one’s comfort, safety and practicality.
A blanket that’s too small can leave your baby uncovered when they kick their legs, while one that’s too large can bunch up in a pram or Moses basket, or even drag and get dirty on pushchair wheels.
By selecting the right size for each situation, whether it’s a Moses basket, cot, swaddle, car seat or pushchair, you'll keep your baby snug, safe and comfortable.
Baby blanket sizes comparison table
| Use | centimetres | inches | Reason |
| Moses Basket | 70 x 90 cm | 27 x 35 in | Snug for newborn naps; fits most baskets. |
| Cot | 70 x 100 cm | 27 x 40 in | Cosy for naps and bedtime; fits most UK cots. |
| Cot Bed | 100 x 150 cm | 40 x 60 in | Larger size for cot beds, a baby sleeping bag can be used instead at this stage. |
| Comfort Blanket | 30 x 30 cm | 12 x 12 in | Approximate size as this is a toy and styles vary. |
| Swaddle | 100 x 100 cm | 40 x 40 in | Large enough to wrap around a newborn with extra fabric to tuck in. |
| Large Swaddle | 120 x 120 cm | 48 x 48 in | For larger babies, can also be used as a light blanket. |
| Pram | 70 x 90 cm | 27 x 35 in | Perfect for keeping newborns warm on walks. |
| Pushchair | 75 x 100 cm | 30 x 40 in | Large enough to tuck in around an older baby and small enough not to get caught in the wheels. |
| Car Seat | 70 x 90 cm | 27 x 35 in | Ideal for small babies, larger blankets may be required for bigger babies or bad weather. Bulky coats should be removed when using car seats, add blankets after strapping your baby in. |
Sizes are all approximate and centimetres have been roughly converted into their equivalent in inches. These are typical baby blanket measurements, although all blankets vary slightly depending on brand and style.
Please follow the safety guidelines for sleeping, swaddling and car seat use.
What is the average size of a baby blanket?
The average baby blanket size is around 75 x 100 cm (30 x 40 inches). This works well for most cots, pushchairs and over car seats. Newborns may need a slightly smaller blanket.
How big should a newborn baby blanket be?
For newborns, a 70 x 90cm cellular blanket is the standard size, ideal for use in a Moses basket or pram. The lightweight, breathable design helps regulate temperature and keeps your baby comfortable.
What size is a swaddle blanket for a newborn?
Muslin swaddle blankets for newborns are typically around 100 x 100 cm (40 x 40 inches). This larger square shape allows plenty of fabric to tuck in for a secure wrap while keeping your baby comfortable and snug.
Choosing the right blanket for every moment
Selecting the right size baby blanket makes everyday moments easier, from wrapping up your newborn after a feed to keeping them snug on a walk. The perfect blanket should feel soft, be the right size for your purpose and be easy to use wherever you go.
At Bumbles & Boo, we’ve chosen our baby blankets with comfort, safety and style in mind, so you can find the right size for every stage. Browse our baby blanket collection to discover cosy blankets your little one will love to snuggle into.
