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10 of the best baby and toddler sleeping bags

Find the right sleeping bag for your baby or toddler, with different tog ratings, fabrics and adaptive styles for all-season comfort and safety.

Baby and toddler sleeping bags

A sleeping bag offers a safe way to keep your baby or toddler warm and cosy while they sleep. Many can be used from birth, although many newborns benefit from being swaddled in the early weeks or months of their life. Once they’re able to roll, or want more freedom to move their arms, a sleeping bag is a safe and convenient choice. Unlike a blanket, your baby can’t kick it off or pull it over themselves. It will stay put all night, and many come with added extras to make your life even easier. Here are a few things to consider when buying a sleeping bag.

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What to look for when choosing a baby or toddler sleeping bag

Size – Most sleeping bags come in sizes similar to baby clothing, although the size increments tend to be larger. Some are one size, designed to last from newborn up to 2 or even 4 years old.

Fabric – Look for natural fibres if possible: even budget sleeping bags are usually 100% cotton. Luxury fabrics like merino and bamboo cost more, but have special temperate regulating abilities.

Tog rating – just like adult quilts, sleeping bags for babies and toddlers come with tog ratings that show how warm they are. The most popular in the UK is 2.5 tog which should work for most of the year. A 1 tog or 1.5 tog sleeping bag can also be useful for warmer nights, and a 3 tog is great if your house gets cold in winter.

Convertibility – Some sleeping bags come with removable layers and/or sleeves which allow you to convert them for different seasons. Others are made from fabrics which do this naturally. Although they’re more expensive, it’s often cheaper than buying separate sleeping bags for each season.

Zips and fastening – Most basic sleeping bags zip up the front or side, and may have poppers at the shoulders. Some have full wraparound zips or two-way zips that allow access at the bottom for nappy changes. Some have a pocket so the harness on a pushchair or car seat can be threaded through. Think about whether these features are useful to you.

Feet – If you have a toddler who moves around a lot during the night, they may prefer a footed sleepsuit, which allows them to move their legs freely.

Care Instructions – Most sleeping bags are machine washable, but do be careful if you buy a luxury fabric like merino wool: these generally need special care to protect their special fibres.

How to use a baby or toddler sleeping bag safely

  • Never use a sleeping bag with a quilt or duvet.
  • Avoid sleeping bags with a hood – It can be dangerous if your baby’s head becomes covered.
  • Make sure that the sleeping bag fits well – You don’t want your baby slipping down inside the bag, so make sure it fits properly around the neck and arms.
  • Always put your baby down to sleep on their back, with nothing else in the cot if they are under 12 months.

We’ve also got a buyer’s guide to help you decide which tog ratings to use, and for further information on what to look out for.

Here’s our pick of the best baby and toddler sleeping bags…

1. Bambino Merino All Seasons Sleeping Bag, £82.99

Best for long-lasting luxury

Fabric: 100% merino wool | Sizing: One size, bag is 98cm long | Tog rating: Suitable for use between 17°C and 27°C

Merino sleeping bags are created from the wool of Merino sheep from the mountains of New Zealand. The fleece is able to adapt to the ever-changing temperatures, and the same goes for products made from the wool. If you look after it properly, the 100% natural wool fibres in this sleeping bag have temperature regulating properties, keeping your baby cool in summer and warm in winter.

With this in mind this bag doesn’t come with a tog rating, instead it’s recommended for use in temperatures between 17°C and 27°C. There’s also a winter weight option, plus an online guide to help you dress your baby underneath.

Although a merino sleeping bag is an investment, because this one comes in one adjustable size and has temperature regulating abilities, it could easily replace 4 or 5 other sleeping bags, so overall it could be a sound investment. MFM reviewer Sarah thought it was worth the money, saying, “From the first night my daughter Esme slept soundly in her Merino wool sleeping bag, I fell in love with it.”

The only downside of Merino wool is the care it requires. You’ll need to use a specialist liquid wool detergent and wash at 30°, and you’ll need to skip the fabric conditioner. Ignoring these instructions can ruin the fibres and stop the sleeping bag from doing its job.

Pros: Adjusts to different temperatures, one size fits all
Cons: Initial outlay is high, needs to be washed separately

Read our full MFM Bambino Merino review here

Available from: Bambino Merino

2. Vertbaudet 4-Season Sleep Bag, from £35.50

Best convertible sleeping bag

Fabric: 100% cotton | Sizing: 0-6 months, 6-18 months, 18-36 months | Tog rating: 1 tog and 3 tog + both together

This clever design, which I recently bought for my own 15-month-old, features two sleeping bags in one: a 1 tog sleeveless summer bag and a 3 tog winter bag with detachable sleeves. Both bags can be used individually, but they also zip and snap together to create one bag. They are generally better used separately: together they’re the equivalent of a 4-tog bag which you would only need in very cold temperatures. Vertbaudet has a tog guide to help with this.

The addition of sleeves to the winter bag is great, as it means you can dress your baby or toddler in less clothing underneath. It would be a great sleeping bag to send to childcare, or for travel, when temperatures may change or fluctuate. The fact the two bags zip together also makes it easy to store, although the winter bag is very padded and quite bulky overall, especially in the largest size.

Overall this is a great multifunctional sleeping bag set that will work all year round, and it offers a good alternative to a merino wool sleeping bag if you just can’t justify the cost all in one go. The navy and white whale and striped print is also really appealing: a unisex design with a bit of french flair.

Pros: Great for customising for each season, good value for money vs buying individual bags
Cons: Zipped together as one bag, it’s too warm for most situations. Winter bag is bulky

Available from: Vertbaudet

3. Slumbersac Summer Sleeping Bag With Feet, from £28.99

Best sleeping bag with feet

Fabric: 100% Jersey Cotton, Padding 100% Polyester | Sizing: 70cm – 120cm | Tog rating: 0.2 to 3.5 tog

Slumbersac makes its famous footed sleeping bag in a huge range of fun prints and various weights, starting with a 0.2 tog sleeveless design, right up to a cosy 3.5 tog style with sleeves. Because of its footed design, you’re advised to buy based on your child’s height, not age. There’s a comprehensive guide to help you choose the right size, and these do run large. The biggest size (120cm) may fit a child as old as 7.

The footed design is ideal for toddlers and preschoolers who are active sleepers: if they keep kicking off their blankets or duvet, this could be the perfect solution as it’ll stay in place all night long without them feeling restricted. One parent said, “my 10 month old loves to sleep on her side and belly and used to struggle in the normal sleeping bag which would wake her. She now sleeps like a log and can move freely with ease.”

The design has foldover feet with non-slip soles, but anyone who has used a sleepsuit with a similar design knows little feet can easily wriggle out of these, so an additional pair of socks might be a good idea. Some parents tuck their kids feet up into the legs once they’re in bed.

Pros: Huge range of sizes, tog ratings and prints available
Cons: Child may need to wear socks, sizing can be confusing at first

Available from: Amazon, Slumbersac

4. Purflo Baby Sleeping Bag, from £35

Best for sensitive skin

Fabric: 100% Cotton, Lining – 70% Bamboo & 30% Cotton, Filling 80% Polyester & 20% Acrylic | Sizing: 3-9 months, 9-18 months | Tog rating: 2.5 tog or 1 tog

This hypoallergenic sleeping bag by Purflo is lined with bamboo, which has natural anti-bacterial properties. This can be particularly helpful for babies and children with asthma and eczema. The fabric helps prevent the build-up of bacteria and also protects from dust mites.

Although its main selling point is the fact it’s designed with sensitive skin in mind, this sleeping bag also has lots of other nice little touches too. The arms are detachable for warmer nights, and there’s a slit at the back which – combined with the clever two-way S-shaped zip – allows you to thread a harness through for travel. You can also change your baby without having to take the sleeping bag off. As MFM home tester Isidora said, “Purflo gives a lot more than what I was looking for, with the hypoallergenic fabric, breathable panels, removable sleeves but also ability to strap the baby in the car seat whilst wearing the sleeping bag. I cannot think of anything more to ask!”

Available from: Amazon, Purflo

5. The Original Grobag Snuggle, from £23.49

Best for newborns

Fabric: Cotton-rich, fluorescent free fabric | Sizing: 0-4 months, 3-9 months | Tog rating: 2.5 tog or 1 tog

Many newborns benefit from being swaddled, but they can grow out of that need quite quickly, either because they want their arms free, or because they learn to roll and swaddling becomes unsafe. Thankfully, this hybrid design offers the best of both worlds. It starts life as a swaddle but as your baby grows you can undo the poppers on the shoulders to let their arms out.

It then becomes a cosy sleeping bag that fits snugly around the body, which helps your baby to feel comforted and protected, but with ample room to move on the bottom half (the International Hip Dysplasia Institute has acknowledged this as a hip-healthy product). The zip opens from the bottom to allow for easy nappy changes, and the tab is concealed under an extra large fabric cover so it doesn’t irritate your baby’s neck.

Pros: Great for transitioning out of a swaddle, well-designed zip
Cons: Larger size is unlikely to be useful as a swaddle, fabric is not 100% cotton

Available from: Amazon, Tommee Tippee

6. Merino Kids Go Go Bag, £79

Best for travel

Fabric: 100% natural fibres (merino wool and organic cotton) | Sizing: 0-2 and 2-4 yrs | Tog rating: 0.5 – 1.8, for use between 18°C and 30°C

Merino Kids bags are similar to Bambino Merino in that they come in adjustable sizes (this is one of the few brands that goes right up to 4 years of age) and benefit from the temperature regulating properties of merino wool. This sleeping bag is said to adjust between 0.5 tog and 1.8 tog, so it’s even suitable for very warm weather. It may feel like you’re dressing your child in quite a heavy garment but they’ll stay nice and cool if you’ve followed the care instructions (wash at 30°C with wool detergent).

MFM home tester Aimee said, “My son has never slept better than when he is in this sleeping bag! I absolutely love it and so does he. As the sleeping bag’s lining is made from wool it has a lovely feel to it. We have been very impressed with this product.”

An added bonus of the Merino Kids design is that it’s been created with travel in mind. It would be great for holidays as it’s suitable for use in temperatures up to 30°C. The Go Go bag also has a pocked halfway down the legs, allowing you to thread  through the harness of a car seat or pushchair. That makes it great for naps on the go, or if you’re out late and need to transfer a sleeping toddler from the car or pushchair to their cot.

Pros: Temperature regulating fabric, generous size, great for travel and trips abroad
Cons: Have to buy 2 if you want to use beyond 2 years, not suitable in rooms below 18°C

Available from: Merino Kids, Amazon

7. Babasac Multi-tog Baby Sleeping Bag, from £38.99

Best 2-in-1 sleeping bag

Fabric: 100% cotton | Sizing: 0-6, 6-18, 18-24 months | Tog rating: 1 tog and 2.5 tog in 1 bag

Similar to the Vertbaudet design, the Babasac is a convertible sleeping bag with an internal zip, however this one has a lower tog rating overall which makes it a little more practical for most families. With both layers intact, it’s a 2.5 tog sleeping bag. Remove a layer to use it as a lightweight 1 tog sleeping bag in warmer weather.

The bag doesn’t have detachable sleeves, just poppers at the shoulders, so you may find in winter that you need a warm sleepsuit and even a vest underneath. It would be a great option for travel, when you just don’t know how warm or cool a hotel room or apartment might be, as you can zip layers in or out to suit.

Home tester Sarah loves how simple it is, and even found an extra way to customise it. “The quilted lining just unzips easily, and voila – it’s gone from 2.5 tog to 1 tog. You can even choose to just have the extra layer on one side, which is great for those transitional months.” She also loves the fun prints. “We’ve gone from hearts to pineapples, and I’m thinking rainbows are next!”

Pros: Converts for year-round use, cute prints
Cons: Smaller sizes mean buying a new one every 6 – 12 months

Available from: Kidly, Amazon, Mama Designs

8. Ergopouch Sleep Suit Bag, from £39.99

Best for older children

Fabric: 100% organic cotton (sleeves contain 5% elastane) | Sizing: 2/3-12 months, 8-24 months, 2-4 years, 4-6 years | Tog rating: 0.3 to 3.5 tog.

Like a big, cosy wearable duvet, the ErgoPouch sleep suit bag is a great transitional style if you have a child who’s struggling to move from a sleeping bag in a cot to a toddler bed with a duvet. Although it can be used from as young as 3 months, where this really comes into its own is in the larger sizes: this will fit a child up to 6 years of age.

The sleeping bag is convertible with a central zip down the bottom half of the sack, which turns it into a sleep suit with legs and grip pads for the feet. It’s also available in a whole host of different tog weights: the lighter 0.3 and 1 tog styles are sleeveless or short-sleeved, while the heavier weight ones have built-in sleeves with fold-over cuffs for added warmth. MFM home tester Frankie said, “my little boy’s room is cold so I know he is warm with this on and I’m not constantly checking if he’s kicked his covers off.”

Our home testers were intrigued by the convertible ‘legs’ on this sleeping bag, but did point out they are only suited to some children. Lynn said, “My little girl is quite petite for her age so this didn’t work well for us as it was too long, but I did like the concept.”

Pros: Unique convertible design, good size range
Cons: Features are suited to specific needs, expensive otherwise

Available from: Natural Baby Shower, ErgoPouch, Amazon

9. Zipadee Zip, from £26

Best for weaning the swaddle

Fabric: 55% cotton, 45% modacrylic| Sizing: XS (3-6 months) to XL (age 2-3) | Tog rating: not supplied

If you’ve got a baby who’s addicted to being swaddled, it can be a tough wake-up call when they roll in their sleep one day and you have to quickly switch to a sleeping bag for safety. The Zippadee Zip has been designed with this in mind.

This ‘starfish’ sleep sack has been created to give babies the cosy feel of a swaddle – with a little resistance around the arms – while still being safe for babies who can roll. In very young babies who still have the startle reflex, it can help them to ‘find their edges’ so they stay asleep. As they get older some babies learn to suck on the fabric like a comforter, helping them to self-soothe back to sleep.

Parents often report incredible results when using this product, with comments like “The first night our baby slept through the night….fluke right? No!” But it doesn’t work for everyone. Some older babies don’t like the feeling of being closed in and can get angry at being unable to reach their hands.

The big downside is that the Zippadee Zip only comes in one weight, without a tog rating. It’s also a cotton/synthetic mix. It feels fairly light and is probably no more than 1 tog. You may need to wrap your baby up in extra layers underneath, but Zippadee Zip’s own advice on this is vague, suggesting you “mimic your own layers,” and keep the room above 20°C.

Pros: Helps swaddle addicts transition to a sleeping bag, lots of fun prints
Cons: Synthetic mix fabric, no tog rating, doesn’t work for all babies

Available from: Amazon, Sleeping Baby

10. Tu Clothing Sleeping Bags 2-Pack, from £28

Best for great value

Fabric: 100% cotton| Sizing: 0-6, 6-12, 12-18, 8-24 months | Tog rating: 1.5

If you’re looking for a great all-round option on a budget, Tu at Sainsbury’s delivers with its 2-pack of 1.5 tog sleeping bags. There are no extra bells and whistles like travel pockets, convertible feet or removable sleeves, but they’re 100% cotton, with side zips and poppers at the shoulder for an easy fit. For most babies, this really is all you need.

Parents are particularly complimentary about the quality of the cotton, which “washes very well and dries very quickly too.” These sacks are also wide at the bottom, allowing lots of room for little ones to get comfy. On the downside, some parents report the zips aren’t the best quality, and you’ll need to unzip the whole sleeping bag to do a nappy change.

The 2-pack is a great idea giving you a back-up on laundry days or in case of accidents. The 1.5 tog weight will work from Spring through to Autumn with the right clothing underneath, and could even be used during Winter with very warm pyjamas. Tu also makes 2.5 tog sleeping bags (sold individually from £14) if you want some extra warmth on colder nights.

Pros: Good value, quality breathable fabric, nice prints
Cons: 1.5 tog may not work in Winter, zips a little flimsy

Available from: Tu Clothing at Sainsbury’s

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