Flying Squirrel Pajama vs. Zipadee-Zip: Which Sleep Sack Is Better for Active Sleepers?

Quick Answer

For active sleepers who toss and turn, the Flying Squirrel pajama offers more freedom of movement with its loose fit and ribbed cuffs, while the Zipadee-Zip provides a snug, swaddle-like feel that can ease the transition from swaddling. Choose the Flying Squirrel for older toddlers who need room to move, and the Zipadee-Zip for babies who still crave a secure, cozy embrace.

If your little one is an active sleeper—rolling, wiggling, and kicking off blankets—you know the struggle of keeping them covered and comfortable through the night. Two popular sleep solutions from Blooming Baby are the Flying Squirrel pajama and the Zipadee-Zip swaddle transition. Both are designed to keep your child warm and safe, but they take different approaches to movement and comfort. In this comparison, we'll break down the key differences to help you decide which is better for your active sleeper.

We'll look at fit, fabric, safety, and how each product supports the natural movement of a growing baby. By the end, you'll have a clear picture of which sleep sack aligns with your child's sleep style and your parenting needs.

Understanding the Flying Squirrel Pajama

The Flying Squirrel pajama is designed as a wearable blanket that gives your toddler plenty of room to move. Its loose fit and gentle stretch allow for natural tossing and turning, while ribbed cuffs at the wrists and ankles keep the pajama in place—no more hiking up during sleep. This design is based on safe sleep recommendations from the American Academy of Pediatrics (AAP), making it a reliable choice for parents who prioritize safety.

Suitable for little ones from 12 months to 5 years, the Flying Squirrel comes in various fabrics, including fleece for colder nights and lightweight options for warmer seasons. For example, the Sleeping Baby Perfect Penguin Flying Squirrel Pajama - Fleece is made of 100% polyester fleece, offering extra warmth, while the Sleeping Baby Navy Flower Flying Squirrel Pajama uses a breathable poly blend. This versatility makes it a favorite for active sleepers who need both freedom and comfort.

• Loose fit for unrestricted movement
• Ribbed cuffs prevent the pajama from riding up
• Available in fleece and lightweight fabrics for seasonal use

Understanding the Zipadee-Zip Swaddle Transition

The Zipadee-Zip is a unique starfish-shaped sleep sack that provides the cozy, secure feeling of a swaddle without limiting your baby's range of motion. It's designed as a safer alternative once your baby starts to wiggle and roll, offering a middle ground between full swaddling and free movement. The snug fit around the torso mimics the womb, which can be soothing for babies who are transitioning out of a swaddle.

Suitable for little ones from 3 months to 3 years, the Zipadee-Zip is intended for sleeping only. Its design encourages self-soothing by allowing babies to bring their hands to their mouth, which can be a game-changer for active sleepers who rely on sucking to calm down. However, the closer fit might feel restrictive for some toddlers who are used to sprawling out.

• Starfish design offers a secure, swaddle-like feel
• Allows baby to move arms and legs while feeling snug
• Helps with self-soothing by allowing hand-to-mouth contact

Key Differences: Fit, Movement, and Fabric

The most significant difference between the two lies in fit. The Flying Squirrel pajama is loose and baggy, giving your child the freedom to stretch out and roll without constraint. The Zipadee-Zip, on the other hand, has a more fitted torso and arms, which can provide a sense of security but may limit full extension. For active sleepers who flail their arms and kick their legs, the Flying Squirrel's roominess is often more comfortable.

Fabric also plays a role. The Flying Squirrel offers fleece options like the Sleeping Baby Pink Poppy Flying Squirrel Pajama - Fleece, which is perfect for colder climates, and lightweight versions like the Sleeping Baby Busy Town Flying Squirrel Pajama - Lightweight for warmer nights. The Zipadee-Zip also comes in various fabrics, but its design is more about the fit than the fabric. Both are made with breathable materials, but the Flying Squirrel's loose fit allows for better air circulation, which can prevent overheating in active sleepers.

• Flying Squirrel: loose fit, ideal for unrestricted movement
• Zipadee-Zip: snug fit, mimics swaddle security
• Fabric choices vary for both, but Flying Squirrel offers more seasonal variety

Trade-Offs to Consider

• Movement Freedom: Flying Squirrel offers a loose fit that allows full range of motion, while Zipadee-Zip's snug fit restricts some movement but provides a sense of security. If your child loves to sprawl, choose Flying Squirrel; if they need security, Zipadee-Zip may be better.
• Transition from Swaddle: Zipadee-Zip is specifically designed for transitioning from a swaddle, offering a familiar snugness. Flying Squirrel is better for older toddlers who have already outgrown swaddling. For babies under 1 year, Zipadee-Zip eases the transition; for toddlers, Flying Squirrel is a natural next step.
• Seasonal Versatility: Flying Squirrel comes in fleece and lightweight options, making it suitable for year-round use. Zipadee-Zip also has fabric variations but is less varied in terms of fit. Consider your climate and choose the fabric that matches your needs; Flying Squirrel offers more seasonal choices.

Product Facts at a Glance

• Sleeping Baby Perfect Penguin Flying Squirrel Pajama - Fleece: The Flying Squirrel pajamas double as a wearable blanket, keeping your little one cozy no matter how they toss and turn. Breathable fabric with gentle stretch, loose fit, ribbed cuffs at wrists and ankles, and designed based on safe sleep recommendations from the AAP. Suitable for 12 months–5 years. Fabric: 100% polyester. This fleece option provides extra warmth for cold nights while the loose fit ensures your active sleeper can move freely without getting tangled.
• Sleeping Baby Garden Dreams Zipadee-Zip Swaddle Transition: The Zipadee-Zip’s unique starfish design provides the cozy, secure feeling of a swaddle without limiting baby’s range of motion. A safer alternative once baby starts to wiggle and roll, keeps them comfy and covered, and is designed based on AAP safe sleep recommendations. Suitable for 3 months–3 years. Intended for sleeping only. If your baby is transitioning from a swaddle and still craves security, this design helps them feel snug while allowing enough movement to self-soothe and roll safely.

Which One Fits Your Child?

Best For

• Toddlers aged 12 months and up who are active sleepers and need plenty of room to move
• Parents looking for a wearable blanket that can be used as pajamas and a sleep sack in one

Not For

• Babies under 12 months who are still transitioning from a swaddle and need a snug, secure fit
• Parents who prefer a sleep sack that keeps the baby's hands covered for self-soothing

Both the Flying Squirrel pajama and the Zipadee-Zip are excellent sleep solutions, but they cater to different needs. If your little one is an active sleeper who values freedom, the Flying Squirrel pajama is your best bet. If you're transitioning from a swaddle and need a secure, cozy option, the Zipadee-Zip is the way to go. Explore the Sleeping Baby Perfect Penguin Flying Squirrel Pajama - Fleece for a warm, roomy sleep solution that grows with your toddler.