Unnivoll Baby Sleep Sack 12-18 Months - 100% Cotton, 0.5 TOG, 2-Way Zipper, Blue Dolphin

Cozy, safe sleep for growing babies

Meet the Unnivoll Baby Sleep Sack for ages 12-18 months. It's crafted from 100% combed cotton and weighs lightly for a wearable blanket that feels breathable yet warm. The Blue Dolphin edition adds a gentle touch of color to bedtime routines.

Designed with safety and everyday life in mind

Safety comes first. The sleep sack is aligned with Consumer Product Safety Commission guidelines, helping you create a safe sleeping environment for your little one without loose blankets. The fabric is pre-washed and durable for busy families.

• Compared with ordinary sleep sacks, the 100% combed cotton fabric delivers about 30% more comfort and breathability.
• Pre-washing reduces shrinkage by roughly 50%, keeping the fit stable wash after wash.
• 2-way zipper runs from top to bottom for easy diaper changes, with a zipper guard to protect delicate skin.
• 0.5 tog provides warmth for nursery temperatures around 75°F without overheating.
• Roomy, leg-friendly cut allows kicking and movement without riding up during sleep.
• Four size options cover growth from 0-6 to 18-24 months.

Everyday practicality that fits your routine

From midnight diaper changes to busy mornings, this sleep sack keeps baby comfortable while you maintain a smooth routine. The sleeveless design helps airflow for warmer nights and lowers the risk of overheating.

• Two-way zipper enables quick changes at night without fully undressing your baby.
• Chin guard protects delicate skin while you change diapers in comfort.
• Machine washable and tumble dry on low for simple care.
• Lightweight fabric makes layering easy for cooler evenings.

Care and fit

Four sizes accommodate growth: 0-6, 6-12, 12-18, 18-24 months. The fabric is pre-washed to minimize shrinkage and maintain fit over time. The blue dolphin design adds charm without compromising function.