Sleepsuit 1.0 TOG - Smiley Sharks

Smiling sharks, jellyfish, small fish — the friendly version of the shark phase.

The 6–18M sleep problem: baby has outgrown the swaddle, wants their arms free, but still needs wearable-blanket warmth. A closed sleep bag becomes a trip hazard once the baby is walking in the crib. Pajamas alone are too cold for the 69–75°F nursery overnight.

This is what goes in between.

Material. TENCEL™ Lyocell shell with DuPont™ Sorona insulation, 1.0 TOG. Wood-pulp fiber on the outside, plant-based polymer insulation on the inside. The same material structure as the 1.0 TOG sleep bag, with separated legs so the toddler can walk, stand, and crawl in it.

The print. Cream-ivory ground (navy binding) with watercolor smiling sharks in white, gray, and blue tones, small fish, blue stars, jellyfish.

Construction. Sleeveless — closed arms are how you overheat a winter baby; the warmth math lives in the body of the suit, not the limbs. Separated legs that hit just below the knee — long enough to keep warm, short enough not to drag. 2-way zipper from the chin to the inner thigh on each leg, so a diaper change doesn't require unzipping the whole garment. Hidden seams. Fabric guard at the zipper top for sensitive necks.

When to switch from sleep bag to sleepsuit. Most families switch around 12–15 months, when the baby is walking confidently in the crib. The closed-leg sleep bag becomes a trip hazard at that point. The sleepsuit gives the same TOG warmth with mobility. Some families switch earlier if the baby protests the closed-leg bag; others stay in sleep bags longer if the baby is content.

Why most premium brands skip this format. The sleepsuit category is small — most premium sleepwear brands jump from sleep bags straight to pajamas, leaving walking toddlers either staying in a sleep bag they're trying to step out of, or jumping into pajamas in a nursery that's too cold for pajamas alone. We make the sleepsuit because the gap is real.

Adjacent products. The 1.0 TOG TENCEL™ Sleep Bag is the pre-walking version of this garment. Browse the full sleepsuit collection or pair with a long-sleeve TENCEL™ sleeper as the under-layer.

Sizing. 6–18M, 18–24M, 2T. Size to current weight and height.

Care. Machine wash cold, tumble dry low. Do not bleach. Do not iron printed panels.

Tested and certified. Fabric carries OEKO-TEX Standard 100 certification. Garment passes CPSC, CPSIA, and ASTM safety testing. Built around the American Academy of Pediatrics safe-sleep guidance. Independent B Corp Certification on the brand.

Browse all TENCEL™ sleepsuits.

Free US shipping on orders over $65. 30-day returns.