Shop by Season / TOG

Eliminate the guesswork of dressing your infant for bed with our baby sleep sack TOG collection, scientifically rated to match your specific nursery temperature. Whether you need a lightweight 0.6 TOG for summer or a cozy 2.5 TOG winter sleep sack, find the perfect weight to keep your little one safe and comfortable all year round.

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Sleep Nest Original

Sleep Nest Original

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Sleep Nest Travel

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Sleep Nest Teddy

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Baby Sleep Sack TOG Guide & Seasonal Bedding

Ensure your child stays at the perfect temperature all year round with our scientifically rated sleepwear. At Baby DeeDee, we have simplified the science of sleep by organizing our collection by TOG (Thermal Overall Grade). Our selection offers specific baby sleep sack TOG for every climate (from lightweight cotton for sweltering summers to quilted warmth for drafty winters).

Understanding Sleep Sack TOG Ratings

Your baby needs a sleep environment that prevents overheating while ensuring they don't wake up cold. Our collection is defined by the TOG rating sleep sack system, which measures thermal resistance. A low rating (like 0.6 TOG) acts like a sheet for warm nights (70-80°F), while a high rating (like 2.5 TOG) acts like a duvet for cool nurseries (64-70°F). Understanding this rating eliminates the guesswork, allowing you to choose the safest option for your baby's specific room conditions.

How to Dress Baby for Sleep

Choosing the right sack is only half the equation; knowing what to wear underneath is just as important. Our guide helps you master how to dress a baby for sleep by layering appropriately. For a standard 1.2 TOG fleece sack, a simple long-sleeve bodysuit usually suffices. However, in colder weather with a 2.5 TOG sack, you might pair it with footed pajamas. This flexibility allows you to customize your baby's warmth level perfectly, ensuring they stay cozy without the risk of overheating.

Sleepwear for Every Temperature

Whether it’s a heatwave in July or a snowstorm in January, we have the precise weight you need. We provide clear temperature guidelines for our fabrics so that your newborn remains in the ideal body position throughout the year. Use our breathable "Sleep Nest Lite" for the warmer months to wick away moisture, or switch to our world-famous quilted "Sleep Nest Original" when the temperature drops, ensuring a safe, consistent sleep routine regardless of the season.

Frequently Asked Questions

When should I switch from a sleep sack to a sleeping jumper?

It is important to think about transitioning to a baby sleeping jumper once your baby starts to pull up to a standing position or walks. Since a standard baby sleep sack is designed for a crib-bound baby, it is important to note that a jumper has holes on its legs that enable active toddlers to move about in cribs without tripping.

What should my baby wear underneath a sleep sack?

What you put underneath will depend upon the room temperature you are in, as well as the TOG rating sleep sack you choose. For a typical 2.5 TOG sack (winter weight), you will usually put a long-sleeve bodysuit or footed PJs underneath. This sack is meant to be your baby’s sole blanket, so keep the base layers simple to prevent overheating.

Are baby sleeping jumpers safe for walking?

Yes. Our baby sleeping jumper, made especially for toddlers who are beginning to stand, crawl, and walk, is perfect for your little explorer. This creative design, often referred to as a "sleep walker," has ankle cuffs that let your child safely and freely move around their crib or bedroom. It provides the same level of warmth as a conventional sack but removes the trip hazard.

Why use a wearable blanket instead of a regular blanket?

The loose blankets inside the crib might be dangerous due to risks of suffocation or entrapment. A baby sleep sack eliminates these hazards by ensuring the "blanket" stays securely on your baby, keeping their face clear. The baby cannot kick the covers off either, so this keeps them at a consistent temperature all night long.

How do I choose the right size?

Sizing is based on weight and height, but most importantly, not just based on age. A proper fit is very important for safety: the neck hole needs to be snug enough that your baby's head cannot slip down inside. Whether choosing a specific baby sleep sack TOG or a jumper, always refer to our size chart to ensure a secure and comfortable fit.