SWEET DOLPHIN Baby Sleep Sack 12-18 Months | 100% Cotton, TOG 0.5, 3-Pack

Introducing the SWEET DOLPHIN Baby Sleep Sack for 12-18 months, a practical wearable blanket crafted from 100% cotton. The fabric feels exceptionally soft and breathable against tiny skin, with a light, airy feel that moves with your little one. The sleeveless cut reduces bulk and, paired with a TOG 0.5 rating, keeps body temperature comfortable across seasons.

Textural comfort matters. The fabric is lightweight and gentle, while seams are neatly finished to minimize irritation during nightly routines. This makes the sleep sack a friendly option for babies who are learning to wiggle and stretch before drifting off, offering a calm cocoon-like experience without overheating.

Designed for ease, the 2-way zipper system shines when it's time for diaper changes. The interior zipper guard and a top zipper cover shield delicate skin, helping you navigate late-night changes with minimal disturbance. In practice, many parents appreciate the speed, safety, and peace of mind this detail provides during busy evenings.

Roomy, secure fit that supports movement

With roomy arm and neck openings, the sack allows natural movement while keeping the baby comfortably contained. The leg area is sized to prevent accidental kicks from compromising warmth, and the ergonomic shape subtly supports hip alignment as babies grow.

Three-pack convenience adds everyday practicality. The set includes three sleep sacks in versatile, gender-neutral tones, including possible grey options, so you’ll always have a clean, ready-to-wear option. The four sizes—S, M, L, XL—allow a smooth transition from early months to toddler stages, reducing the need for multiple purchases.

Care, color, and everyday use

• 100% cotton fabric provides softness against delicate skin and breathable comfort.
• TOG 0.5 supports year-round layering for temperature control.
• Sleeveless design helps prevent overheating while retaining warmth.
• Machine washable for easy care and quick laundry turnaround.
• Gender-neutral colors and durable construction suit daily use and gifting.

At a glance

• Breathable, skin-friendly fabric you can trust.
• 2-way zipper for fast changes in the dark.
• Ergonomic fit that grows with your child.

In daily life, these sleep sacks can support calmer bedtimes, whether at home, daycare, or travel. They’re a practical, comfortable staple for growing kids and a thoughtful addition to a baby registry.