

TOG (Thermal Overall Grade) is the warmth rating used for baby sleepwear. It measures how well a fabric traps warm air to keep your baby at a comfortable temperature. The higher the TOG, the warmer the sleepwear, making it easier to choose the right SleepSack based on your room temperature.
TOG Tool
Use our interactive TOG tool below to select a TOG and find recommended products that are right for you.
Select a TOG above to see product recommendations.
Want to learn even more about TOG?
Learn more on our TOG Guide
This product is perfect for 68°F to 72°F (Spring & Fall)
Want to learn even more about TOG?
Learn more on our TOG Guide
Best-selling Ideal Temp is the ONLY swaddle that helps regulate your baby’s temperature. Featuring IntelliThread™ technology, our innovative smart textile absorbs heat, stores it, and then releases it back to your baby, maintaining an ideal temperature and avoiding temperature spikes (that often lead to wakeups). Yes, really. Bonus points: IntelliThread™ fibers are embedded in the fabric, so they won’t ever fade or wash out!
The real deal: HALO’s signature 3-way swaddle design easily adjusts to fit your baby’s sleep style: arms in, hands-to-face, or one or both arms out. Includes an inverted zipper for easy diaper changes, as well as scratch-free zipper covers. Its roomy sack design is recognized by the International Hip Dysplasia Institute as promoting healthy hip development. Extra soft, cozy fabric is made of a polyester-rayon blend. Use over regular sleepwear.
Ideal Temp is made from a temperature regulating fabric that’s stretchier than standard HALO cotton or microfleece. Because of this stretch, Ideal Temp can run slightly bigger than other swaddles. Make sure to choose the correct size for your baby’s current height and weight rather than having them “grow into it.” We recommend sizing down if between sizes.
• 3-way swaddle for better, longer sleep
• Adjustable wings for getting the perfect snug wrap
• Helps gradually transition them to wearable blanket
• Zipper opens from bottom for easy changes
• Hip healthy; approved by the International Hip Dysplasia Institute
• Smart temperature-regulating fabric helps prevent overheating
• Imported
• Polyester rayon blend
• All-season 1.5 TOG
• Wash before first use.
• Turn inside out, close zipper and fasteners.
• Machine wash cold with like colors on gentle cycle.
• Do not bleach, iron or dry clean.
• Dryer friendly: tumble dry low.
What is TOG?
TOG (Thermal Overall Grade) is the warmth rating used for baby sleepwear. It measures how well a fabric traps warm air to keep your baby at a comfortable temperature. The higher the TOG, the warmer the sleepwear, making it easier to choose the right SleepSack based on your room temperature.
TOG Temperature Guide
0.5 TOG — 75°F to 77°F — Summer / warm rooms
1.0 TOG — 72–75°F — Year-round / mild rooms
1.5 TOG — 68–72°F — Spring & fall
2.0 TOG — 64–68°F — Cooler rooms
3.0 TOG — 61–64°F — Winter / cold rooms
Not sure what TOG to choose? A good rule of thumb: dress baby the way you'd dress yourself for sleep, then swap the blanket for a SleepSack.
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Best-selling Ideal Temp is the ONLY swaddle that helps regulate your baby’s temperature. Featuring IntelliThread™ technology, our innovative smart textile ab...
Best-selling Ideal Temp is the ONLY swaddle that helps regulate your baby’s temperature. Featuring IntelliThread™ technology, our innovative smart textile absorbs heat, stores it, and then releases it back to your baby, maintaining an ideal temperature and avoiding temperature spikes (that often lead to wakeups). Yes, really. Bonus points: IntelliThread™ fibers are embedded in the fabric, so they won’t ever fade or wash out!The real deal: HALO’s signature 3-way swaddle design easily adjusts to fit your baby’s sleep style: arms in, hands-to-face, or one or both arms out. Includes an inverted zipper for easy diaper changes, as well as scratch-free zipper covers. Its roomy sack design is recognized by the International Hip Dysplasia Institute as promoting healthy hip development. Extra soft, cozy fabric is made of a polyester-rayon blend. Use over regular sleepwear.Ideal Temp is made from a temperature regulating fabric that’s stretchier than standard HALO cotton or microfleece. Because of this stretch, Ideal Temp can run slightly bigger than other swaddles. Make sure to choose the correct size for your baby’s current height and weight rather than having them “grow into it.” We recommend sizing down if between sizes.
Reduce the startle reflex with secure, adjustable swaddling for better sleep through the night.
Adjustable Fasteners
For the perfect fit everytime
3-Way Swaddling
Arms in, arms out, our hands to face
Inverted or Double Zipper
For easy diaper changes
How to use a 3-way swaddles?
Every baby has different sleep preferences. The adjustable HALO® SleepSack swaddle provides 3 easy ways to swaddle to ensure your baby’s best sleep and to help make the transition from swaddling easier.
What should my baby wear underneath?
It is essential to dress your baby appropriately underneath the sleepsack or swaddle, depending on the room temperature. Use lightweight, breathable clothing, such as a onesie or a light cotton sleeper, in warm weather. In colder temperatures, opt for a warmer sleeper or footed pajamas.
What is a startle reflex?
Swaddling creates a familiar and comforting environment for newborns, reminiscent of the cozy confines of the womb. The snugness of the swaddle provides a sense of security, helping babies feel calm and reassured. Also, newborns have a strong startle reflex that can wake them up abruptly during sleep. Swaddling can effectively limit the jerky movements caused by this reflex, promoting more peaceful sleep and longer rest periods.
Overall rating: 4.2885246 / 5 from 305 reviews.
The HALO SleepSack Swaddle Ideal Temp is praised for its temperature regulation, comfort, and ease of use. Customers appreciate its ability to maintain an ideal temperature, its soft and breathable fabric, and its versatile design that accommodates different sleep styles. The swaddle is also noted for its easy diaper changes and scratch-free zipper covers.
Review topics: [velcro, material, fabric, swaddle, zipper, arms, quality, sleep, weight, design, size, baby, feels, daughter, looks, temperature, weather, length, style, color, fits, feature, son, issues, stays, babies, sleepsack, blanket, wrap, sack].
"The first thing I noticed about this swaddle is that the material is incredibly soft. The issues I have with it are the Velcro. The Velcro is incredibly noisy and startles my baby every time I take it off. The Velcro also starts to ruin the material on the side you attach it to after use. It’s been 6 weeks of me using it and the material looks so rough. The edges of the Velcro also start to curl up after approximately 10 washes. I really wish it had the Velcro like the momcozy one which is much quieter and softer."
— Michaela D. (3/5)
"Quality blanket! This is a gift to a mom-to-be!"
— Stacey E. (5/5)
"Traditional swaddles were a nightmare for us. Our little one kept wiggling her way out. The Halo swaddle was a game changer. Would definitely recommend."
— William T. (5/5)
"Halo swaddles have been amazing for our baby. The easiest swaddle we’ve come across with having tried multiple other brands. We plan to use Halo for future transitions to sleep sacks, etc."
— Alexis P. (5/5)
"I adore this swaddle so much I am going to purchase the bigger size so we can keep using it. My LO was born at 11 pounds so the newborn size is already getting tight. I live in the Caribbean and I was worried it was going to be too warm since we don't use the air conditioner but it definitely does regulate temperature and keeps them comfortable."
— Kevin R. (5/5)
"Perfect weight for our little one!"
— Jessica K. (5/5)
"Love the ideal temp products. The Velcro is just VERY loud, there’s no easy/delicate way to remove the swaddle for a dream feed. Also not sure why there’s a large tag."
— Caitlin L. (4/5)
"This was lighter weight than I thought it would be! In comparison to the organic cotton on I have this one feels lighter/thinner. I use this one when my baby is in micro fleece onesies, I don’t think it would be warm enough over a normal onesie going into the winter months. Likely would have been great for a summer baby!"
— Kelsey H. (4/5)
"The Velcro is HUGE which is great if your baby doesn’t mind the noise and extra motion."
— Paloma M. (4/5)
"Great quality"
— Heather F. (5/5)
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