Unnivoll Fleece Baby Sleep Sack 6–12 Months | 2.0 Tog, 2-Way Zipper

Cozy warmth with a smart design for busy nights

Meet the Unnivoll Fleece Baby Sleep Sack, a wearable blanket crafted from soft, skin-friendly microfiber polyester. This 2.0 tog sleep sack is purpose-built to help your little one stay comfortably warm during indoor fall and winter evenings. The fabric feels gentle against delicate baby skin, while the breathable fleece creates a balanced micro-climate for peaceful sleep. Certified by the Consumer Product Safety Commission (CPSC), the sack emphasizes a secure sleeping environment without restricting movement.

Designed to feel like a comforting wearable garment, it wraps your baby in warmth while allowing tiny arms to move freely. The medium blue-gray tone adds a timeless touch to nursery ensembles, making this sleep sack as practical as it is stylish for everyday use at home or on quick trips.

What makes this sleep sack stand out

• Two-way zipper for effortless diaper changes at night, helping you minimize wake-ups.
• Soft interior fleece locks in warmth without overheating, keeping your baby snug through cooler indoor temps (64–70°F / 18–21°C).
• Roomy, kick-friendly fit that supports healthy hip movement while staying securely on, thanks to a sleeveless design.
• Easy care with machine washability and low-temperature dry, making laundry days simpler for busy caregivers.
• Four size options (S, M, L, XL) to match growing babies; measure height and weight and compare with the size chart for best fit.
• Sold as a convenient 2-pack—great for quick changes and travel-friendly rotation.

Real‑world use scenarios

On chilly nights, the 2.0 tog warmth helps your baby stay cozy under the blanket without overheating. The 2-way zipper allows quick diaper checks and changes without fully unzipping, which can help minimize disruption during sleep. The sleeveless cut reduces the risk of overheating while preserving freedom of movement for little arms to stretch and snuggle into a comfortable position. When you’re traveling or dining out, the soft fleece and light weight make the sleep sack a natural companion for calm, familiar sleep cues anywhere.

Parents often appreciate the secure fit, which helps prevent the sack from riding up at the hips while still leaving room for active kicking. With its machine-wash friendly fabric, you can keep the sleep sack fresh and ready for the next night’s routine, supporting a consistent sleep environment for your infant.

Because every baby is unique, we encourage you to refer to the size chart before choosing. The four available sizes cover a range from newborn-ready to active toddlers, helping you invest in a product that grows with your child while maintaining the right level of warmth and comfort.