baby crawling on floor in a halo sleepsack wearable blanket

The weather is getting colder, and all parents want to ensure that their baby is warm enough in the winter months. After all, babies are less able to regulate their body temperature compared to adults. As you decide what should baby sleep in, you’ll want to take the TOG rating of products into consideration.

When you put your baby in their bedside bassinet, you will want them to be in a HALO® SleepSack® to keep them safe and warm. Here is what you need to know about heat ratings and which HALO® product is right for your baby.

Shop the entire SleepSack Collection >

The weather is getting colder, and all parents want to ensure that their baby is warm enough in the winter months. After all, babies are less able to regulate their body temperature compared to adults. As you decide what should baby sleep in, you’ll want to take the TOG rating of products into consideration.

When you put your baby in their bedside bassinet, you will want them to be in a HALO® SleepSack® to keep them safe and warm. Here is what you need to know about heat ratings and which HALO® product is right for your baby.

Shop the entire SleepSack Collection >

 

What Is a TOG Rating?

TOG, or Thermal Overall Grade, is a unit of measurement – originally created in Britain - and used to determine the thermal insulation of a product, usually in clothes. This is relatively common, for example, in baby sleepwear. Generally, with baby sleepwear, the TOG rating corresponds to the temperature the nursery is kept at and which product your little one should wear to stay at an ideal temperature. Remember that TOG ratings stack, so if your baby is wearing two layers of 1.0 TOG, they have a total of 2.0 TOG insulation.

 

What Is a TOG Rating?

TOG, or Thermal Overall Grade, is a unit of measurement – originally created in Britain - and used to determine the thermal insulation of a product, usually in clothes. This is relatively common, for example, in baby sleepwear. Generally, with baby sleepwear, the TOG rating corresponds to the temperature the nursery is kept at and which product your little one should wear to stay at an ideal temperature. Remember that TOG ratings stack, so if your baby is wearing two layers of 1.0 TOG, they have a total of 2.0 TOG insulation.

100% cotton muslin wearable blanket with a 0.5 tog rating100% cotton muslin wearable blanket with a 0.5 tog rating
100% cotton muslin wearable blanket with a 0.5 tog rating100% cotton muslin wearable blanket with a 0.5 tog rating

100% Cotton SleepSack

100% cotton muslin wearable blanket with a 0.5 tog rating100% cotton muslin wearable blanket with a 0.5 tog rating
100% cotton muslin wearable blanket with a 0.5 tog rating100% cotton muslin wearable blanket with a 0.5 tog rating

100% Cotton Muslin SleepSack

organic cotton wearable blanket with 0.5 tog ratingorganic cotton wearable blanket with 0.5 tog rating
organic cotton wearable blanket with 0.5 tog ratingorganic cotton wearable blanket with 0.5 tog rating

0.5 TOG: SleepSack®

For the lowest TOG rating, 0.5, the room is the hottest, between 75° and 80°. This is unlikely in the cold months and is not an ideal temperature for babies. However, if the nursery is this hot, choose a SleepSack® made from 100% cotton, 100% cotton muslin, or 100% organic cotton.

0.5 TOG: SleepSack®

For the lowest TOG rating, 0.5, the room is the hottest, between 75° and 80°. This is unlikely in the cold months and is not an ideal temperature for babies. However, if the nursery is this hot, choose a SleepSack® made from 100% cotton, 100% cotton muslin, or 100% organic cotton.

micro-fleece wearable blanket with a 1.0 tog ratingmicro-fleece wearable blanket with a 1.0 tog rating
micro-fleece wearable blanket with a 1.0 tog ratingmicro-fleece wearable blanket with a 1.0 tog rating

Micro-Fleece SleepSack

1.0 TOG: SleepSack®

It’s much more common for a nursery to be between 72° and 75°. For this temperature, choose a velboa or micro-fleece SleepSack®. While this is warmer than the average nursery, it is not uncommon for regions with moderate weather or apartments where parents may have less control over the home’s climate control system. 

1.0 TOG: SleepSack®

It’s much more common for a nursery to be between 72° and 75°. For this temperature, choose a velboa or micro-fleece SleepSack®. While this is warmer than the average nursery, it is not uncommon for regions with moderate weather or apartments where parents may have less control over the home’s climate control system. 

100% Cotton Swaddle

100% Cotton Muslin Swaddle

100% Organic Cotton Swaddle

Ideal Temp Swaddle

Plushy Dot Velboa SleepSack

100% Cotton Easy Transition

1.5 TOG: SleepSack® Swaddle, SleepSack® and Easy Transition

Most nurseries follow guidelines of staying within the ideal temperature range between 68° and 72°. Any product with a 1.5 TOG is perfect for this range. Place your baby in their HALO® bassinet that vibrates in any of the following products: SleepSack® Swaddle made of 100% cotton, 100% cotton muslin, 100% organic cotton, ideal temp fabric, SleepSack® in our Plushy Dot Velboa or an Easy Transition made of 100% cotton in fun heathered colors. 

1.5 TOG: SleepSack® Swaddle, SleepSack® and Easy Transition

Most nurseries follow guidelines of staying within the ideal temperature range between 68° and 72°. Any product with a 1.5 TOG is perfect for this range. Place your baby in their HALO® bassinet that vibrates in any of the following products: SleepSack® Swaddle made of 100% cotton, 100% cotton muslin, 100% organic cotton, ideal temp fabric, SleepSack® in our Plushy Dot Velboa or an Easy Transition made of 100% cotton in fun heathered colors. 

2.5 TOG: SleepSack®

When it’s colder in your house, a nursery might be between 64° and 68° during the winter. Before you put your little one or twins in their twin bassinet, bassinet or crib, be sure to keep them warm in a winter weight SleepSack® that we have carefully designed for these colder moments. 

micro-fleece swaddle with a 3.0 tog ratingmicro-fleece swaddle with a 3.0 tog rating

Micro-Fleece Swaddle

3.0 TOG: SleepSack® Swaddle

For the coldest nights, that cause the room to fall between 61° and 64°, try a SleepSack® Swaddle made with either micro-fleece. Featuring multiple layers to ensure baby’s warmth and comfort, these fabrics are ideal for the winter months.

3.0 TOG: SleepSack® Swaddle

For the coldest nights, that cause the room to fall between 61° and 64°, try a SleepSack® Swaddle made with either micro-fleece. Featuring multiple layers to ensure baby’s warmth and comfort, these fabrics are ideal for the winter months.

micro-fleece swaddle with a 3.0 tog ratingmicro-fleece swaddle with a 3.0 tog rating

Micro-Fleece Swaddle

What Should a Baby Wear Under a Swaddle?

After choosing the appropriate TOG rating, many parents wonder, “What should baby wear under swaddle?” The correct answer to this will vary on the room temperature and your baby’s personal preferences. Under the SleepSack® Swaddle, parents have several options on how to dress their baby. This includes: a short sleeve onesie, a long sleeve onesie, or footie pajamas

Here are some best practices to keep in mind while deciding that align with safe sleep habits:

• Do not dress your baby in more than one layer than you as an adult would wear to be comfortable in that environment

• Check your child’s temperature to make sure that their extremities (hands, feet, and head) are not too hot or too cold to the touch

• When checking your baby’s temperature, their tummy and chest should feel warm and dry, not sweaty or cold. This is a sign that they are dressed too hot or too cold. 

If you’re wondering what should newborns sleep in, the good news is that it isn’t much different from older babies! You’ll still want to choose a SleepSack product based on the room temperature and your baby’s personal preferences. The only difference is that as soon as a newborn starts rolling over it is time to transition from a swaddle to a sleep sack.

Shop our entire SleepSack® Collection to find the perfect product for your baby’s needs.

What Should a Baby Wear Under a Swaddle?

After choosing the appropriate TOG rating, many parents wonder, “What should baby wear under swaddle?” The correct answer to this will vary on the room temperature and your baby’s personal preferences. Under the SleepSack® Swaddle, parents have several options on how to dress their baby. This includes: a short sleeve onesie, a long sleeve onesie, or footie pajamas

Here are some best practices to keep in mind while deciding that align with safe sleep habits:

• Do not dress your baby in more than one layer than you as an adult would wear to be comfortable in that environment

• Check your child’s temperature to make sure that their extremities (hands, feet, and head) are not too hot or too cold to the touch

• When checking your baby’s temperature, their tummy and chest should feel warm and dry, not sweaty or cold. This is a sign that they are dressed too hot or too cold. 

If you’re wondering what should newborns sleep in, the good news is that it isn’t much different from older babies! You’ll still want to choose a SleepSack product based on the room temperature and your baby’s personal preferences. The only difference is that as soon as a newborn starts rolling over it is time to transition from a swaddle to a sleep sack.

Shop our entire SleepSack® Collection to find the perfect product for your baby’s needs.

As a parent, you want baby to be as cozy and comfy as possible, especially while sleeping. When looking at blankets and sleepwear you may have noticed the word TOG on various baby sleep garments items.

So, what does TOG mean?

TOG is a unit of measure of thermal insulation used in the textile trade. The British "TOG" value is the international standard measurement of a blanket's thermal effectiveness (how well it keeps you warm). 

What SleepSack fabric weight is suitable for my baby’s sleeping environment? 

When it comes to dressing your baby for sleep, care must be taken to avoid over bundling which can cause overheating—a risk factor for SIDS. The HALO SleepSack wearable blanket and HALO SleepSack swaddle are suitable for a wide range of temperatures by adjusting the clothing worn underneath it. Babies can wear anything from just a diaper, to a long sleeve bodysuit or a cotton coverall.

All HALO SleepSack swaddles and SleepSack wearable blankets have been developed and tested to deliver TOG values that are in the ‘safe’ range for baby. However, it is important to remember that TOG values apply to each layer of baby’s clothing. The sum of each layer’s value equals the total TOG value. For example, if you dress your baby in HALO SleepSack with a TOG of 1 over a cotton bodysuit with a TOG of 1, the total TOG is 2.

All Sleepsack fabrics breathe and wick away moisture to avoid overheating. The following table shows the TOG values for each of our fabrics to help guide you to which fabric is best for your baby.  Note that the SleepSack Swaddle values are a little higher as they account for the additional layers of the swaddle wrap. 

Comfort Rating

Fabric

TOG

 
Warm 100% Cotton
Muslin
100% Cotton
100% Organic Cotton
1.5 The SleepSack swaddle has 3 layers of fabric keeping your baby warm because of the wrap, increasing the total TOG value of blanket.
Warmer Microfleece
Velboa
3 A cotton undergarment works well when coupled with any SleepSack swaddle to keep your baby comfortable throughout the year.

 

HALO SleepSack Wearable Blanket

Comfort Rating

Fabric

TOG

 
Warm 100% Cotton
Muslin
100% Cotton
100% Organic Cotton
0.5 Offers just the right comfort for warmer seasons or climates, can be layered with warmer sleepwear for cooler temperatures.
Warmer Microfleece
Velboa
1.0 Three season comfort, perfect for moderate weather.
Warmest Winter Weight 2.5 Ideal for chilly seasons and climates.

 

Takeaway Tips

  • The ideal room temperature to avoid overheating is between 68-72°F (20-22°C)
  • Check your child's temperature to make sure that baby’s extremities — hands, feet, and head — are neither hot nor cold to the touch. Baby’s tummy and chest should feel warm and dry, not sweaty or cold. 
  • If the temperature of your home changes throughout the day or seasonally, try putting baby to sleep in different clothes for naps and nighttime sleep. 
  • Do not dress baby in more than one layer than an adult would use to be comfortable in the same environment. 
  • Baby’s head should also be uncovered, unless baby weighs less than eight pounds or baby is in a cold environment