Unnivoll Baby Sleep Sack 12-18 Months – 100% Cotton, 0.5 TOG, 2-Way Zipper, Green Pine Tree

Smart sleep begins with comfort and safety

The Unnivoll Baby Sleep Sack is a lightweight wearable blanket designed for toddlers around 12-18 months. Crafted from 100% combed cotton, it feels soft against delicate skin while staying breathable enough to help regulate warmth during bedtime routines.

Key benefits you can expect

Built to grow with your child and simplify nightly tasks, this sleep sack blends safety standards with everyday practicality.

• SAFETY FIRST—Certified to meet CPSC guidelines with a sturdy zipper and protective guard to minimize skin irritation during zips.
• COMFORT & BREATHABILITY—100% combed cotton delivers a soft touch and improved airflow for comfortable sleep.
• GROWTH-READY FIT—Four size options (0-6, 6-12, 12-18, 18-24 months) support your child as they grow.
• EASY DIAPERING—2-way zipper runs from top to bottom, enabling changes without fully undressing, even in the night.
• ROOMY YET SNUG—Generous leg space supports kicking and hip movement while a sleeveless design helps prevent overheating.
• LIGHTWEIGHT & 0.5 TOG—A breathable layer well-suited for around 75°F, easy to layer as needed.

Durability, care, and everyday use

Pre-washing technology reduces shrinkage by about half, so the sleep sack keeps its shape after repeated machine washes and low-temperature drying. It’s designed to withstand busy parents and the curiosity of active toddlers.

• CARE MADE SIMPLE—Machine washable; tumble dry on low to preserve softness and fit.
• EZ TO USE—The 2-way zipper and guard protect skin while you diaper on or off with ease.

What makes this a practical choice

In soft pine tree green, the sleep sack adds a gentle, nature-inspired touch to any nursery. Its defined boundaries help babies stay warm without overheating, while the sleeveless cut keeps arms free for exploration and self-soothing.