We had a dinky baby. The snuz sleeping bags have poppers on the side to make them a bit more snug for the littler babies. Helped us, also meant we didn’t have to buy hundreds." (Recommended by Mumsnet user rosed1008) Our verdict According to GroBag, the company credited with popularising the bag in the UK, around 95% of parents now use one. Almost all brands will state whether they comply with the safety standard in the accompanying instructions. If it’s not mentioned, you can follow up with their Customer Service department. One BabyCentre parent said:"I really can't recommend Mori sleeping bags more! I've tried a few and they are fantastic. They go up to 2 years so it saves buying any more every 6 months." Fabric: Cotton and polyester | Sizes: 0-6 months, 6-18 months, 18-36 months | Tog: 2.5 What we love

We also consulted renowned consumer organisations such as Which? to gather information on how to choose the best quality products and also those that would offer the most value for money. Made from soft cotton-rich, fluorescent-free fabric, our Steppeebags are snuggly and kind on baby’s skin – perfect for a comfortable night’s sleep. It’s easy to see why – using a baby sleeping bag means you don’t have to worry about how much bedding to use, it keeps the baby contained and warm all night (no matter how much they wriggle), and is much easier to carry around out of the house than a pile of blankets.

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Superlove baby sleeping bags come in at the top end of the price scale, but they feature such gorgeous Merino wool, they are totally worth investing in if you have the cash to splash. In fact, studies have shown Merino wool actually improves babies sleep patterns by creating a cosy and breathable microclimate. Remember how frustrated babies don’t like being dressed and undressed? That goes for their sleeping bag too. On the whole, side zips are easier than central zips for getting the bag on and off a wriggly baby. We liked gro bag too, but only bought them in tkmaxx. They have great resell value." (Loved by Mumsnet user cookielove) Our verdict It’s entirely possible, therefore, that you might buy more than one bag for different weather conditions – or you might decide to buy a lightweight model and put your baby in warmer nightwear underneath during the winter or choose a multi-season sleeping bag, such as the JoJo Maman Bebe Sleep Snuggler or the Superlove Merino.

Experts recommend that you keep your baby’s crib free from blankets, pillows and toys until their first birthday, as a precaution against SIDS. Baby sleeping bags are the ingenious alternative which keep your baby cosy and safe while they sleep. What’s more, the best baby sleeping bags zip or popper closed so that you don’t need to worry about your child wriggling out of their bedding and waking up chilly - especially as many of us are watching the thermostat more carefully this winter. Designed to be halfway between a traditional sleeping bag and ordinary nightwear, a baby sleeping bag is, essentially, a fabric vest (with or without sleeves, depending on the brand) that ends in a wide, cosy bag for the legs. It’s very important that your baby does not overheat at night, so read the manufacturer’s instructions carefully about the tog rating. The results are in, and The Original Grobag is the best baby sleeping bag for 2023. It’s cosy, cleverly designed and washes really well - plus it’s got the Lullaby Trust stamp of approval. The original and still the best, we think the Grobag is the best baby sleeping bag to buy. How we chose our recommendations Fluctuations in room temperature often require parents to adjust baby’s warmth levels during the night. However, changing baby’s wearing layers whilst they are sleeping can be disruptive and safer sleep guidelines warn against adding loose blankets on top of a baby sleeping bag as it introduces avoidable risks.

Our All-Season sleepbag has been designed for arms out sleeping and should not be used as a swaddle. The poppers on the armholes (0-6m only) allow for fit adjustment for smaller babies to ensure a perfect fit, to keep baby safe and comfortable. Our sleepbags are slim fitting through the chest to enable full freedom of movement without restriction or excess bulk with a roomy, hip-healthy bottom. Parents love the clever covered opening that fits a five-point harness. This means that the bag can be used with a pushchair for on-the-go naps. It may not be cheap, but several BabyCentre parents say it’s worth the investment and made to last. This sleeping bag only comes in one size but it will last you from newborn to two years, and it’s available in four further designs. All Tommee Tippee’s Grobags are tested to British and European safety standards. They can be machine washed at 40°C and tumble dried on a low heat, which is great because… poonamis happen! Also available in 2.5 tog and 18-36 months. Bear in mind that current car seat safety advice is to avoid strapping babies and children into their car seats while wearing padded coats or suits, which might apply to the bulkier sleeping bags too. How do I keep a sleeping bag clean? Therefore, we teamed up with sleep scientists and a qualified paediatrician at Northumbria University, to develop a dual-tog All-Season Grobag™. Suitable for use in temperatures ranging from 14-27+°C, featuring removable insulation it can be easily adjusted from a 2.5 tog to a 1.0 tog sleep bag. If parents need to adjust baby’s temperature while they are sleeping, they can safely add or remove warmth using the outer zip ‘n’ pop layers with minimal disturbance to baby. With breathable mesh, positioned in high-heat areas, it enhances baby’s ability to efficiently release excess heat, which supports their natural temperature regulation and ultimately helps to keep them comfortable for a good night's sleep.

We've always used JoJo Maman Bebe ones and they're brilliant, wash well, are comfortable and they last." (Recommended by Mumsnetter MummyDummyNow) We have the super love merino ones which are also 0-2. They are much thinner than usual ones so not bulky. They have poppers under arms to use when small so they can’t slip down. Ds started using around 3-4 months and they seems comically long, but after a month is so seemed to fit perfect. He’s still using now at 1 year and they feel lovely and soft still. They still have growing room." (Recommended by Mumsnetter Caspianberg) Our verdict

One BabyCentre parent said:"Bought lb a sleeping bag from them which has footholes, cuffed almost like a long pair of harem pants lol!!! It's so much better for toddlers as they can walk around freely with their sleeping bag still on." With legs and booties, the JoJo Maman Bebe Sleep Snuggler looks a little different to the other sleeping bags on our list, and that extra snugness makes it the cosiest around. If your child gets frustrated having their feet in a sleeping bag, this could be the one for you. Another vote for Slumbersac. They are great - we have several for our toddler." (Tried and tested by Mumsnet user Elune) Our verdict Shoulder poppers are another helpful feature for dressing and undressing. Almost all sleeping bags should have under-arm poppers to ensure a good, secure fit for a smaller baby. Some, such as the SnüzPouch, might have an extra zip at the front for changing a nappy without having to remove the bag. 4. Washing instructions

The Jojo Maman ones which are like little padded suits are fantastic if you have a wriggler or baby who likes to walk in their sleeping bag. Really handy for the car as well. Bonus points for how comical the baby looks when they're walking around like a tiny Michelin man." (Tried and tested by Mumsnet user TerribleCustomerCervix) Our verdict Slim fitting through the chest to enable full freedom of movement without restriction or excess bulk with a roomy, hip-healthy bottom. Grobags look undeniably premium but it’s their safety credentials which are truly impressive. Grobags have the Lullaby Trust seal of approval and were the inspiration for the current British safety guidelines. The company's side zip bag is its most popular and it’s not hard to see why. It’s designed to make night-time nappy changes easier and is perfect for young babies who have outgrown their swaddle.As well as being safer than loose bedding, baby sleeping bags are designed to make night time tasks that little bit easier. All the sleeping bags on our list have double or cleverly designed zippers that help make night time nappy changes less disruptive. Another advantage of a baby sleeping bag is that it stays on if you need to lift your baby to feed or move them to another room. With a variety of styles, functions and price points now available, which sleeping bags fulfil their promise of a peaceful night's sleep? Keep reading to find out which ones impressed us most.