Sleep Sack in Mini Martians 1.0 TOG

The Larkspur Baby Sleep Sack is where comfort meets function, designed to keep your little one cozy and secure all night long. Made to follow AAP safe sleep guidelines, it provides the warmth of a blanket without the risks of loose bedding. Now crafted with our upgraded CloudWeave™ 2.0 Bamboo, it feels softer, stretchier, and even more gentle on delicate skin.

This sleep sack features an easy side zipper that makes late night diaper changes simple and quick. The smooth dual zipper system provides convenient access from the top or bottom, while a zipper garage keeps your baby’s skin protected. Every detail is thoughtfully created for comfort, safety, and ease.

We have also updated the interior with an improved zig zag quilting pattern that distributes warmth evenly and gives the sleep sack a softer, cozier feel. Lightweight polyfill offers just the right amount of warmth, making it ideal for nurseries kept between 68 and 72 degrees Fahrenheit.

Details

• 1.0 TOG rating for comfortable year round use
• Side zipper design that makes dressing and diaper changes easier
• Zipper garage that protects delicate skin from irritation
• Soft and cozy interior with upgraded zig zag quilting
• Tagless design for irritation free comfort
• Safe for daily use and not treated with flame retardants
• Made from CloudWeave™ 2.0 Bamboo for breathable, gentle comfort on sensitive or eczema prone skin
• Fabric: 95 percent Viscose from Bamboo and 5 percent Spandex
• Filling: 100 percent Polyester

Recommended sizes for an ideal fit

• Small: 0 to 6 months
• Medium: 6 to 18 months
• Large: 18 to 36 months

Rest easy knowing this design adheres to the safe sleep standards set by the American Academy of Pediatrics. The soft, stretchy fabric is perfect for wiggly little ones, while the ankle cuffs ensure feet stay free, allowing your toddler to move safely while staying cozy.

Please note: Sizes S, M, and L are designed with extra comfort in mind. The measurements from High Point Shoulder (HPS) to the bottom are 78 cm (S), 90 cm (M), and 106 cm (L). Many parents appreciate the generous fit, allowing for layering or growth.

To keep your garment looking and feeling its best, turn it inside out before washing. Use cold or warm water (below 30°C/86°F) and wash gently with like colors using mild detergent. Avoid harsh chemicals like bleach, which can weaken the fabric and fade the colors. For lasting softness, use short washing cycles and promptly remove from the dryer. While machine drying is fine, line drying helps your garment last longer. Always check the care label before ironing for specific instructions.

• Softer, upgraded CloudWeave™ 2.0 bamboo
• Lower everyday pricing
• 15% VIP savings
• Free returns + instant exchanges
• Rewards on every dollar

We proudly stand behind the quality of every Larkspur product. Our 90 day manufacturing warranty covers manufacturing defects such as issues with stitching, zippers, seams, snaps, fabric integrity, or construction that occur under normal use.

All items made with our upgraded CloudWeave™ 2.0 fabric are covered under this warranty. Most CloudWeave 2.0 products include a CloudWeave 2.0 mark on the neck heat label or wash care label, confirming warranty eligibility. However, some CloudWeave 2.0 items may not have this mark due to production timing or labeling updates. These items are still fully covered as long as they are made with CloudWeave 2.0.

Products made with our original CloudWeave™ fabric are not automatically covered. If your item does not have the CloudWeave 2.0 mark, or if you are unsure which fabric you have, simply visit our returns and warranty portal and enter your order details to check eligibility.