Summer Sleepwear for Babies and Toddlers

Sleep Better in Our Baby Summer PJs

When temperatures rise, getting a solid night’s sleep can feel like a battle at bedtime, but having a quality, TOG-rated summer sleep sack or wearable blanket is your best defense against losing sleep in the warmer months. Designed to be thinner and lightweight, a summer sleep sack or summer-specific swaddle helps keep your baby cool and prevents overheating, supporting longer and more comfortable sleep.

To make dressing your baby simple, we use TOG ratings, which stands for Thermal Overall Grade. TOGs indicate how much warmth a sleep bag provides—the higher the number (for example, 2.5–3.5 TOG), the thicker and warmer your baby will be. In summer or warmer conditions, a 0.2 TOG or 1.0 TOG is usually best. In temperature-controlled rooms, such as those with air conditioning, adding a lightweight layer can help, but always refer to a TOG guide for the most relevant safe sleep dressing guidelines.

For extra sleep reassurance, giving your baby the ability to sleep in a more natural Arms Up position can make a big difference for the whole family. Our Swaddle Up and Swaddle Up Transition Bag feature unique patented wings that allow babies access to their hands so they can gently rub their face as they did in the womb and self-soothe between sleep cycles. This can help promote longer, more restful sleep for both baby and parents.

Summer Sleepwear That Grows With Your Child

As your little one grows, their needs change, and their sleepwear should too. That’s why we’ve created designs that grow with them, perfect for babies and toddlers in transition. Once your baby starts showing signs of rolling, it’s time to move on from swaddling and transition to arms-free sleep for safety. Our innovative Swaddle Up Transition Bag includes removable zip-on, zip-off wings, allowing a gentle transition to arms-free sleeping without abruptly disrupting everyone’s sleep.

Comfort is key, especially in warmer months. Our Dreamstretch Bamboo collection is made from a soft, lightweight bamboo fabric that feels buttery soft and is perfect for delicate skin. Its naturally moisture-wicking properties and breathable fibers help keep babies dry and comfortable all night long. Our sleepwear undergoes extensive quality and performance testing, so you can trust it to hold up wash after wash. It’s completely machine-washable and dryer-friendly, making laundry easier so you can spend more time enjoying baby snuggles.

Stay Cool for Many Summers to Come

Choosing the right summer sleep sack for your baby is simple when you consider our three distinct developmental stages of sleepwear. Each stage is designed for a specific phase of your baby’s development and is available in lightweight TOGs, ensuring a safe and comfortable sleep environment.

Stage 1 Swaddle Up is ideal for newborns who love to be swaddled but still want access to their hands to self-soothe, just like they did in the womb. Stage 2 Swaddle Up Transition Bags or Suits feature zipper-removable wings and are designed to help babies transition safely and gently to arms-free sleep. They should be used once your baby starts showing signs of rolling. Stage 3 Sleep Bags or Suits provide a safe, wearable blanket option for older infants and toddlers who are fully rolling and active in the crib.

We provide clear sizing and age guides to help you choose the right product, based primarily on your baby’s weight and length rather than age alone. Following these guidelines ensures a safe, snug fit that supports healthy growth and comfortable sleep.

Explore our dedicated collections to find the perfect cool, cozy, and functional infant sleepwear:

For newborns, check out our Stage 1 Summer Swaddles.

For babies showing signs of rolling, browse our Transition Sleep Bags and Suits for Summer.

And for little ones on the move, discover our comfortably cool Summer Sleep Suits and Sleep Bags.