Choosing The Best Summer Sleeping Bag

baby sleeping in their cot wearing a sleep store sleeping bag

Summer Sleeping Bag Guide

 

We recommend using a sleeping bag year round, including during the hot days and nights of summer.  Sleeping bags used without any additional bedding help ensure your baby or toddler is sleeping safely and stays a comfortable temperature all night.

Sleeping bags are also a very strong sleep association, reminding your child that it's sleep time no matter where they are. This is very useful when you are on holiday or wanting your child to sleep when you are out and about over the summer.  Size, fabric type, tog rating, warmth & sleepwear combinations, zip position and more are covered and linked to from this page about infant sleep bags.

We only stock brands we really rate as being good quality and value for money. Plus we make sure all our sleeping bags meet the relevant safety standards.  Having said that, we do have some particular favourites and also some clear best-sellers with our customers. 

  

Our Summer Sleep Sack Collection

For room temperatures above 24 degrees, choose a lightweight bag or a bag with a TOG rating lower than 0.6.

If you want an option that:

(Table scrolls right on mobile) 

 Woolbabe Summer Weight Sleeping Bag in Pebble

The Sleep Store - Lightweight Merino Sleeping Bag - Navy Scribble

 ErgoPouch Sleeping Bags at The Sleep Store

 Bonds Summer Weight Sleeping Bag

 Little Unicorn Muslin Sleeping Bag - Forest Friends Design

Tick image for Baby Carrier  Comparison Table Is a Merino / Organic Cotton blend
Tick image for Baby Sleeping Bag Warmth Comparison Table Made from super soft Merino
Tick image for Baby Sleeping Bag Warmth Comparison Table Is breathable, lightweight jersey cotton
Tick image for Baby Sleeping Bag Warmth Comparison Table Made from cotton rich stretch fabric
Tick image for Baby Sleeping Bag Warmth Comparison Table Is extremely breathable and lightweight
Tick image for Baby Sleeping Bag Warmth Comparison Table Wicks moisture away from the skin and is ideal for sweaty babies
Tick image for Baby Sleeping Bag Warmth Comparison Table Is good value for money
Tick image for Baby Sleeping Bag Warmth Comparison Table Also available in Bamboo blend
Tick image for Baby Sleeping Bag Warmth Comparison Table Front facing two-way zip with domes
Tick image for Baby Sleeping Bag Warmth Comparison Table Great for babies who don't move around a lot
Tick image for Baby Sleeping Bag Warmth Comparison TableIs generously sized and available in sizes up to 6 years old
Tick image for Baby Sleeping Bag Warmth Comparison TableIs generously sized and available in sizes up to 4 years old
Tick image for Baby Sleeping Bag Warmth Comparison Table Super stretchy for wriggly babies & toddlers
Tick image for Baby Sleeping Bag Warmth Comparison Table Cocooned bottom for a snug fit
Tick image for Baby Sleeping Bag Warmth Comparison Table Come in a range of gorgeous designs
Tick image for Baby Sleeping Bag Warmth Comparison Table Comes highly recommended with an average 5/5* review
Tick image for Baby Sleeping Bag Warmth Comparison Table More fitted in style
 
Tick image for Baby Sleeping Bag Warmth Comparison Table A looser fit to keep baby cool

Choose a

WOOLBABE SUMMER WEIGHT >

Choose

THE SLEEP STORE BAG >

Choose an

ERGO POUCH >

Choose a

BONDS BAG >

Choose an

ADEN & ANAIS or LITTLE UNICORN BAG >

 (Table scrolls right on mobile) 

 

Shop Summer Weight Sleeping Bags Now >

 

For room temperatures between 20-25 degrees, choose a mid-weight, 3-seasons or a bag with a TOG rating of 1.0.

If you want an option that:

 

 Woolbabe Summer Weight Sleeping Bag in Tide

The Sleep Store - Organic Cotton Sleeping Bag 1.0 Tog - Diamonds

 ErgoPouch Sleeping Bag at The Sleep Store

 Gro Bag - 1.0 TOG Sleeping Bag - The Sleep Store Temperature Guice

 Nature Baby Organic Cotton and Merino Sleeping Bag

Tick image for Baby Sleeping Bag Warmth  Comparison Table Cover the widest temperature range and can be used in temperatures of up to 28 degrees

Tick image for Baby Sleeping Bag Warmth  Comparison Table Good value for money

Tick image for Baby Sleeping Bag Warmth  Comparison Table Is breathable, lightweight organic jersey cotton

Tick image for Baby Sleeping Bag Warmth Comparison Table Good value for money

Tick image for Baby Sleeping Bag Warmth Comparison Table Made from soft, organic cotton

Tick image for Baby Sleeping Bag Warmth  Comparison Table Merino/cotton blend that wicks moisture away from the skin and is ideal for sweaty babies

Tick image for Baby Sleeping Bag Warmth Comparison Table Made from soft, breathable organic cotton

Tick image for Sleeping Bag Warmth  Comparison Table Super stretchy for wriggly babies & toddlers

Tick image for Baby Sleeping Bag Warmth Comparison Table - For babies who don't move around Quick to dry with a Polyester fill and cotton outer

Tick image for Baby Sleeping Bag Warmth Comparison Table - For babies who don't move around Has a full side zip with domes for easy opening and airing

Tick image for Baby Sleeping Bag Warmth Comparison Table - Sizes up to 4 years old Is generously sized and available in sizes up to 6 years old

Tick image for Baby Sleeping Bag Warmth Comparison Table - generously sized Is generously sized and available in sizes up to 4 years old

Tick image for Baby Sleeping Bag Warmth Comparison Table - Roomy in size More fitted in size with stretchy panels and a high neck

Tick image for Baby Sleeping Bag Warmth Comparison Table - Gorgeous designs Easy to care for - can be tumble dried on low

Tick image for Baby Sleeping Bag Warmth Comparison Table - Gorgeous designs Fairtrade and free from harmful chemicals

Tick image for Baby Sleeping Bag Warmth Comparison Table Comes highly recommended with an average 5/5* review

Tick image for Baby Sleeping Bag Warmth Comparison Table Wash as part of a normal load and can be tumble dried

Tick image for Baby Sleeping Bag Warmth Comparison Table Easy to care for

Choose a

WOOLBABE 3 SEASONS >

Choose

THE SLEEP STORE 1.0 TOG Bag >

Choose an

ERGO POUCH 1.0 TOG BAG >

Choose a

GRO BAG 1.0 TOG >

Choose a

NATURE BABY BAG > 

 (Table scrolls right on mobile)

 

 

Shop Midweight Sleeping Bags Now >

 

What weight or TOG rated sleeping bag do I need? 

A TOG (Thermal Overall Grade) essentially measures how much a particular fabric insulates and is roughly equivalent to a layer of clothing or a light blanket. Many sleeping bags use the European TOG rating system to indicate how warm the sleeping bag is and what season they are suitable for. The higher the TOG, the warmer the sleeping bag.

Summer sleeping bags are usually 1.0 or under, depending on where you are and the temperature range in your child's bedroom.  Generally speaking a 0.6 tog or lower is ideal for high summer with room temperatures of 25 degrees or above.  A 1.0 tog bag is usually suitable in between seasons or room temperatures between 20 -24 degrees Celsius. 

When room temperatures can vary between 16-20 degrees a 2.5 tog rated bag is a good solution. It's important to keep baby cool and avoid overheating, after all, they can't simply throw off their sleeping bag if they get too hot. We always recommend natural breathable fibres for clothing and pyjamas, and in particular, merino can help with temperature regulation.

A number of external factors determine the tog rating of the sleeping bag that should be used. These include the quantity of clothing the baby is wearing, the temperature of the infant’s bedroom, the baby’s health and the amount of bedding necessary to keep an individual infant warm – this may vary as it does for adults.  

Many sleeping bags that we stock come with a free nursery thermometer to help you select which tog baby sleeping bag to use and what sleepwear to put your baby in. 

Are 0.2 tog rated bags much cooler than 0.5 tog rated bags? We don't think there is a noticeable difference between these two ratings, particularly when comparing tog rating across brands. It's always important to check your baby regularly to ensure they do not overheat.

 

The TOG rating chart below gives you an indication of what bag to use based on the expected summer temperature of your child's bedroom.

(Table scrolls right on mobile) 

 

14-16 C

16-18 C

18-20

20-22

22-24

24-26

26-28

28+

0.2 - 0.6 TOG rated 

(or Lightweight bag)

 

 

 

 

 

 

The Sleep Store -Sleeping Bag and Short Sleeve Body Suit for Room Temperatures 24-26 Degrees 

Summer Weight Sleeping Bag and Short Sleeve Body Suit for Room Temperatures 26-28 Degrees

Summer Weight Sleeping Bag, Singlet and/or Nappy Icon for Baby Room Temperature of 28+

 

14-16 C

16-18 C

18-20

20-22

22-24

24-26

26-28

28+


1.0 TOG rated

(or Midweight 3 Seasons bag)

 

 

1.0 TOG rated or midweight  Sleeping Bag, with long sleeve bodysuit and full length bodysuit icons for Baby Room Temperature of 18-20 degrees

1.0 TOG rated or midweight Sleeping Bag with full length bodysuit Icon for Baby Room Temperature of 20-22

 

Midweight or 1.0 Tog rated Sleeping Bag with Long Sleeve Bodysuit Icon for Baby Room Temperature of 22-24

 

 

Midweight or 1.0 TOG rated Sleeping Bag, Short Sleeve Bodysuit Icon for Baby Room Temperature of 24-26 

Midweight, 1.0 TOG Sleeping Bag with Singlet and/or Nappy Icon for Baby Room Temperature of 26-28 degrees

1.0 TOG or Midweight Sleeping Bag, Singlet and/or Nappy Icon for Baby Room Temperature of 28+

 

14-16 C

16-18 C

18-20

20-22

22-24

24-26

26-28

28+


2.5 TOG rated

(or Duvet Weight bag)

 2.5 TOG rated or duvet weight  Sleeping Bag, with long sleeve bodysuit, full length bodysuit, singlet and socks icons for Baby Room Temperature of 16-18 degrees

 Duvet weight or 2.5 TOG rated Sleeping Bag, with long sleeve bodysuit, full length bodysuit and socks icons for Baby Room Temperature of 16-18 degrees  

 2.5 TOG rated or Duvet Weight Sleeping Bag with full length bodysuit Icon for Baby Room Temperature of 18-20

 2.5 TOG rated or Duvet Weight Sleeping Bag with Long Sleeve Bodysuit Icon for Baby Room Temperature of 20-22 Degrees

 

 

 

 

 

14-16 C

16-18 C

18-20

20-22

22-24

24-26

26-28

28+

3.5 TOG rated

(or Duvet Weight with Sleeves)

 

   3.5 TOG rated or duvet weight with sleeves  Sleeping Bag, with long sleeve bodysuit and full length bodysuit and socks icons for Baby Room Temperature of 14-16 degrees

 3.5 TOG rated or duvet weight with sleeves  Sleeping Bag, with full length bodysuit icon for Baby Room Temperature of 16-18 degrees 

   3.5 TOG rated or duvet weight with sleeves  Sleeping Bag, with long sleeve bodysuit icon for Baby Room Temperature of 18-20 degrees

 3.5 TOG rated or  Duvet weight with sleeves  Sleeping Bag, with short sleeve bodysuit icon for Baby Room Temperature of 20-22 degrees 

 

 

 

 

 (Table scrolls right on mobile) 

 

Shop Sleeping Bags Now >

 

Why are some sleeping bags tog rated and others are not?

Natural fibres, such as Merino are not rated TOG because they adjust according to temperature, and this is why they are so popular. 

Sleeping bags with polyester or from fibres that consistently perform to a testing standard or set temperature range (such as cotton) tend to be tog rated. Merino is also amazing at wicking moisture away from the skin, meaning sweaty babies won't wake up from cold, clammy fabric. Woolbabe bags have the widest temperature range - the 3-seasons bag can be used for rooms 18-28 degrees, duvet weight bag can be used 14 to 22 degrees.

Choose the Right Woolbabe & Clothing For Your Baby's Room >

 

 

Why use Merino in summer - won't it be too hot?

Merino is a highly breathable natural fibre that regulates your baby's temperature. This means your baby will always be at the right temperature – never too cold, never too hot. It can also absorb up to 30% of its own weight in water without feeling damp, so baby remains warm despite nappy leaks, spills or sweating on hot summer nights whereas cotton tends to become cold and clammy.

At The Sleep Store and we believe in using wool, not only due to its temperature regulating properties but also because recent research suggests that babies sleep better in wool. Wool fibres form natural air pockets that act as insulators, keeping babies warm without sacrificing breathability. It also helps create a healthy sleeping environment because it's resistant to mould, mildew and bacteria and this also helps to stop odours developing.  

Which sleeping bag option can be used in spring and autumn as well as summer?

The Woolbabe 3-Seasons is the best option for use through these times of year. As the seasons change, you'll need to adapt your baby's clothing that you combine with the Woolbabe 3-seasons to keep them comfortable.  If the room temperature is consistently high then we recommend investing in a dedicated summer weight sleeping bag.

What to dress baby in at night

The warmth of the bag will vary enormously depending on what clothing you use inside the bag. You can easily add another layer of clothing to make the bag warmer, such as using an extra merino bodysuit. 

Using a room thermometer (such as a gro egg) to accurately determine the temperature in your child's room is a good idea and will be a big help, particularly when it comes to choosing the clothing and sleeping bag combination for the temperature. 

Many sleeping bags, including Woolbabe, now come with a clothing guide in addition to a free room thermometer to help you decide which clothing combination to use. Use your common sense too; the clothing guides are just a starting point and you will still need to monitor your child and adjust their clothing and sleeping bag combination so that they are a comfortable temperature and don't overheat.  

Sleeping Bag & Clothing Guide

The guide below will help you to choose a sleeping bag that is suitable for the temperature of the room which baby will be sleeping in. Babies warmth needs vary for child to child, just as they do for adults, so use as a guide and adjust to suit your baby accordingly. Check your baby regularly to ensure they do not overheat or are waking up from being too cold.

The optimal room temperature is around 18 degrees Celsius.  By adjusting the clothing that baby wears inside the sleeping bag you'll help to make baby more comfortable at different room temperatures. Try to keep baby's room temperature below 27 degrees so that they don't overheat. If the room temperature drops and baby is waking up from the cold choose a warmer weight sleeping bag.

Sleeping bags like the Woolbabe are fantastic at adjusting to a wider range of room temperatures because of the use of naturally temperature regulating wool.

 (Table scrolls right on mobile) 

 

14-16 C

16-18 C

18-20

20-22

22-24

24-26

26-28

28+

0.2 - 0.6 TOG rated 

(or Lightweight bag)

 

 

 

 

 

 

The Sleep Store -Sleeping Bag and Short Sleeve Body Suit for Room Temperatures 24-26 Degrees 

Summer Weight Sleeping Bag and Short Sleeve Body Suit for Room Temperatures 26-28 Degrees

Summer Weight Sleeping Bag, Singlet and/or Nappy Icon for Baby Room Temperature of 28+

 

14-16 C

16-18 C

18-20

20-22

22-24

24-26

26-28

28+


1.0 TOG rated

(or Midweight 3 Seasons bag)

 

 

1.0 TOG rated or midweight  Sleeping Bag, with long sleeve bodysuit and full length bodysuit icons for Baby Room Temperature of 18-20 degrees

1.0 TOG rated or midweight Sleeping Bag with full length bodysuit Icon for Baby Room Temperature of 20-22

 

Midweight or 1.0 Tog rated Sleeping Bag with Long Sleeve Bodysuit Icon for Baby Room Temperature of 22-24

 

 

Midweight or 1.0 TOG rated Sleeping Bag, Short Sleeve Bodysuit Icon for Baby Room Temperature of 24-26 

Midweight, 1.0 TOG Sleeping Bag with Singlet and/or Nappy Icon for Baby Room Temperature of 26-28 degrees

1.0 TOG or Midweight Sleeping Bag, Singlet and/or Nappy Icon for Baby Room Temperature of 28+

 

14-16 C

16-18 C

18-20

20-22

22-24

24-26

26-28

28+


2.5 TOG rated

(or Duvet Weight bag)

 2.5 TOG rated or duvet weight  Sleeping Bag, with long sleeve bodysuit, full length bodysuit, singlet and socks icons for Baby Room Temperature of 16-18 degrees

 Duvet weight or 2.5 TOG rated Sleeping Bag, with long sleeve bodysuit, full length bodysuit and socks icons for Baby Room Temperature of 16-18 degrees  

 2.5 TOG rated or Duvet Weight Sleeping Bag with full length bodysuit Icon for Baby Room Temperature of 18-20

 2.5 TOG rated or Duvet Weight Sleeping Bag with Long Sleeve Bodysuit Icon for Baby Room Temperature of 20-22 Degrees

 

 

 

 

 

14-16 C

16-18 C

18-20

20-22

22-24

24-26

26-28

28+

3.5 TOG rated

(or Duvet Weight with Sleeves)

 

   3.5 TOG rated or duvet weight with sleeves  Sleeping Bag, with long sleeve bodysuit and full length bodysuit and socks icons for Baby Room Temperature of 14-16 degrees

 3.5 TOG rated or duvet weight with sleeves  Sleeping Bag, with full length bodysuit icon for Baby Room Temperature of 16-18 degrees 

   3.5 TOG rated or duvet weight with sleeves  Sleeping Bag, with long sleeve bodysuit icon for Baby Room Temperature of 18-20 degrees

 3.5 TOG rated or  Duvet weight with sleeves  Sleeping Bag, with short sleeve bodysuit icon for Baby Room Temperature of 20-22 degrees 

 

 

 

 

 (Table scrolls right on mobile) 

 

Shop Sleeping Bags Now >

 

   

Sleeping bag features explained:

Merino/Cotton:

Woolbabe sleeping bags use a unique fabric knitted especially for Woolbabe from 30% merino and 70% cotton. This feels like a cotton T-shirt but contains enough merino that it really helps regulate your baby's temperature. This fabric can help babies stay the right temperature, covers a wide room temperature range and stays comfortable even if it gets damp.

Weight & Size:

Choose a sleeping bag for the size and weight your child is NOW. Sleeping bags need to be the right size to be a safe fit and we do not recommend buying a bag to 'grow into'.  Sizing differs for each brand, so please check the table above or see each product page for details. In particular, the 2-4 year Woolbabes should not be used for children under 12kg and we recommend waiting until 2 years old as they are a big fit and are very long.

Age ranges can vary in size between manufacturer, however, use the following info as a guide 0-6m or at least 4kg, 6-18m or at least 8.1kg, 18-36m or at least 11.4kg and 3-6 years or at least 55cm chest.

 (Table scrolls right on mobile) 

 

Woolbabe

The Sleep Store

Ergopouch

Nature Baby

Aden + Anais

Little Unicorn

Gro Bag

Bonds

Age Range

3-24 Month

3-24 Month

2-12 Month

0 - 24 Months

6-12 Month

6-12 Month

6-18 Months

6-12 Month

Length

100 cm

100 cm

82 cm

90 cm

79 cm

76 cm

94 cm

76 cm

Width

44 cm

44 cm

43 cm

51 cm

 

 

 

 

Chest Width

34 cm

34 cm

32 cm

27 cm

 

 

 

 

Back of Neck

10 cm

10 cm

10cm

10 cm

 

 

 

 

 Warmth Rating:

Sleeping bags generally come in 3 weights - Summer (or 0.2 - 0.6 tog), Mid-weight (3-seasons, 1.0 tog) and Winter weight (duvet, winter, 2.5 & 3.5 tog).  For most homes, you will need more than one weight of sleeping bag to ensure your child sleeps comfortably throughout the year.

The only bag which gets close to being a 'year-round' bag is the 3-seasons Woolbabe, which we have personally used in rooms 18-28 degrees. However, if your child's room is regularly in the high 20's we recommend investing in a summer sleeping bag.

Fabric & layers:

Summer sleeping bags are either one or two layers of fabric.

They can be made from either jersey fabric (stretchy like a T-shirt) or Woven cotton (like sheets, sometimes, referred to as sheeting fabric).

Our summer bag range includes 100% cotton - in a variety of weaves and Woolbabe's unique Merino and organic cotton blend.

Buggy Slot:

Some of our summer sleeping bags have a 'buggy slot', which means you can use the bag in a buggy with 5 point harness. These bags are all clearly labelled in the product description page. You can, of course, use buggy slot bags in your cot as normal.

Front zip travel bags have a double-ended zip on the front and buggy slot in the back. Side zip travel bags have slots in both the front and back of the bag.

Eczema Friendly options:

Our own brand 100% organic cotton range is a standout option here is you are looking for a generously sized option that's soft against the skin.

ErgoPouch is also a consideration for a more snug fitting bag.

Is a Front Zip Sleeping Bag Better than a Side Zip or Diagonal Zip?

 

We often get asked whether the front or side zip bag is 'better'....it's really hard to say, as our customers have different views on this!

We find a bag with front zipper is much easier to use - simply pop your baby in and zip down the front (zips end at the bottom). Bags with front zips don't have the hassle of babies popping the shoulder domes, generally have smaller armholes which are a closer fit and have no risk of the domes failing after lots of use. It's still easy to change a nappy with a front zip, as they are plenty long enough and the bags open wide enough to access the nappy.

Shoulder domes and side zip enable you to open the bag out flat. This can be easier for babies under 6 months who still need frequent night nappy changes. With babies who sleep through the night, the easier nappy change isn't really a factor.

Some bags have domes on both shoulders (eg Woolbabe & Grobag) and when combined with a long side-zip can fold out flat for faster drying after washing, others have 2 domes on one shoulder only.

Should I choose a front or side zip?

 

  

Compare Sleeping Bag Brands & Styles

The Sleep Store carries a wide range of sleeping bags, the best we can find!  This can be confusing if you are new to sleeping bags. We aim to give you a range of fabrics, styles, composition and of course the all important-budget!

While a couple of brands are better known, all our bags have a point of difference and all meet our standards for quality and durability that may make them the perfect option for your baby! Don't assume you need the most-well known or expensive brand as that's what you have heard of or all your parent's group have!

Compare Sleeping bag brands >