Unnivoll Baby Sleep Sack 18-24m - 100% Cotton, 0.5 TOG, 2-Way Zipper (Green Pine Tree)

Introducing the Unnivoll Baby Sleep Sack designed for toddlers 18-24 months. This lightweight wearable blanket uses 100% cotton and a calm Green Pine Tree motif, delivering gentle warmth with breathable comfort through a slim 0.5 TOG profile.

Safety, materials, and core benefits

Safety comes first with a high-quality cotton fabric and a durable zipper designed for quiet nighttime use. The sleep sack is crafted to meet Consumer Product Safety Commission (CPSC) guidelines, helping create a secure sleep space for your little one.

• 100% combed cotton for softness and improved breathability
• Durable zipper engineered for smooth operation against delicate skin
• Safety-certified to align with CPSC guidelines

Upgraded comfort and easy care

Compared with ordinary sleep sacks, this model uses 100% combed cotton that delivers about 30% more comfort and breathability. Pre-washing significantly reduces shrinkage—by about 50%—so the bag maintains its shape after machine washing and drying at low temperatures. Busy families appreciate the low-maintenance routine.

• 30% improvement in comfort and breathability
• Pre-washed fabric to reduce shrinkage by 50%
• Machine-washable and safe for low-temperature drying

Diapering-friendly design and temperature balance

The 2-way zipper runs from the top to the bottom, making diaper changes quick and quiet, even in the middle of the night. A zipper guard protects skin and the chin, while the 0.5 TOG fabric keeps your baby comfortably warm in typical nursery temperatures around 75°F and above.

• 2-way zipper for easy diaper changes
• Zipper guard for skin safety and chin protection
• 0.5 TOG is suitable for warmer nursery nights

Roomy yet secure for growing babies

The sleep sack offers ample room for kicking, yet it cannot be kicked off, helping your child stay cozy. The sleeveless design reduces overheating and allows free arm movement while preserving lasting warmth.

• Roomy fit supports healthy leg movement
• Sleeveless design minimizes overheating
• Secure fit to help maintain warmth

Growth-ready sizing and everyday practicality

Four size options cover babies from 0-6 months up to 24 months, supporting daily use as your baby grows. This makes the Unnivoll sleep sack a practical addition to any nursery wardrobe.

• Sizes: 0-6m, 6-12m, 12-18m, 18-24m
• Designed for frequent use and easy layering

Care and longevity

To care for this sleep sack, wash cold and tumble dry on low. The pre-washed cotton helps preserve fit over time, reducing distortion with repeated washing.

• Machine wash cold; tumble dry low
• Avoid high heat and harsh detergents