lulumoon Sleep Sack Muslin for Baby (9–15 Months) | Cotton Wearable Blanket

Cozy all-season comfort for your baby

Meet the lulumoon Sleep Sack Muslin for babies aged 9 to 15 months. This cotton wearable blanket blends comfort with simplicity, featuring a double-layer Muslin that feels soft against delicate skin. The exterior is a refined solid, while the interior displays a twig pattern that adds a gentle touch of charm to any nursery.

Designed with real-life routines in mind, this sleep sack supports peaceful rest and easy care. A two-way YKK zipper runs from chest to foot for simple diaper changes, complemented by practical shoulder snaps that make dressing quick and gentle — no extra fuss for you or your baby.

In size M, the bottom is intentionally extra-wide, giving little movers room to wriggle, kick, and explore while staying cozy. The 0.7 TOG rating offers year-round temperature regulation, helping your baby feel comfy whether the house is cool or warm. The natural Muslin breathes and softens with each wash, maintaining that tender feel wash after wash.

Care and nursery styling go hand in hand. The Sleep Sack's neutral hues and minimal pattern coordinate with modern décor, making it a versatile choice for daytime lounging, nap times, or nighttime routines. It also makes a thoughtful baby shower gift for new parents seeking practicality and comfort in one piece.

Who is it for

The Sleep Sack is ideal for babies who are learning to roll or sit independently and need a cozy, safe sleeping layer while remaining unrestricted at the hips and legs.

• Cozy Double Layer - All-Season Comfort: breathable Muslin with a soft cocoon feel for restful moments.
• Effortless Diaper Changes - Undisturbed Ease: two-way zipper plus shoulder snaps for quick dressing and changes.
• Spacious Bottom for Playful Movement: extra-wide bottom supports crawling and wiggling in a secure fabric.
• Temperature Control for Year-Round Use: 0.7 TOG helps regulate warmth without overheating.
• Machine Washable - Softness Guaranteed: fabric keeps its softness wash after wash.

In addition to practical features, the Sleep Sack invites a calm, familiar ritual around daily routines—lulling baby toward rest with gentle textures and a quiet, secure design. Use it for nursery lounging, nap times, or peaceful nights, knowing it remains lightweight and comfortable enough for all-season use.