Copper Pearl Premium 3-Layer Knit Sleep Bag 1.0 TOG Diesel

Meet the Copper Pearl Premium 3-Layer Knit Sleep Bag Diesel, a blanket that can’t get kicked off and a thoughtful alternative to loose blankets. Designed to help baby sleep more soundly, its layered knit feels indulgent against the skin while staying lightweight enough for year‑round use. This is the kind of sleepwear that blends warmth, breathability, and modern style into one practical piece for your nursery.

Three-layer softness with breathable stretch

The sleep bag combines premium polyester and rayon with three buttery knit layers. The result is ultra-soft, breathable fabric that offers just the right hint of stretch, so baby can move slightly without feeling restricted. This thoughtful construction can help little one feel cozy and secure through the night, while keeping fabric comfortable next to delicate skin.

• Ultra-soft, breathable fabric with a gentle stretch for everyday comfort
• Designed as a safer alternative to loose blankets, promoting a snug sleep environment

Warmth tailored to common nursery temps

With a 1.0 TOG rating, this sleep bag is designed for room temperatures around 69–73°F. That targeted warmth helps maintain a comfortable microclimate without overheating. The line also features additional TOG options, so you can mix and match for different seasons or climates.

Generous fit, precise measurements

The 18–24 month size measures 34 inches in length, about 15.5 inches under the armpits, and roughly 21 inches at the widest point. The sleeveless design helps prevent overheating and makes layering simple, while maintaining a snug, secure fit that stays put as baby moves.

• 34" length supports growing babies without restricting activity
• Wide underarm measurement allows natural movement while staying secure

Practical design details you’ll love

A tag-free neck minimizes skin irritation and distractions at bedtime. A full‑length top-to-bottom zipper enables quick, quiet changes, making nightly routines smoother. The Diesel print adds a stylish, modern touch to your nursery, so sleepwear doubles as nursery decor.

Style, quality, and year‑round versatility

Copper Pearl combines simple, modern designs with high-quality construction. The three-layer knit, sleeveless cut, and versatile prints are built for year‑round use, offering adaptable warmth and a calm, cohesive look in any nursery. This piece works well with a variety of outfits and bedding styles, helping you create a cohesive bedtime routine without compromising on comfort or aesthetics.