Baby Sleep Bag 1.0 TOG in TENCEL™ Waffle - Denim Blue

Fewer night wakeups, more warmth held close without the bulk. The waffle weave traps a little extra heat, so a 1.0 TOG reaches into cooler rooms too.

Mid-tone denim blue, solid.

1.0 TOG, waffle-weave TENCEL™ — the year-round nursery weight, built for 69–75°F nursery overnights.

Why TENCEL™ here. We choose the fiber by the job. For a piece worn close to the skin and washed often, we use TENCEL™ Lyocell — it keeps its softness and shape through repeated laundering and moves heat and moisture off the skin. For our lightest warm-weather pieces — muslin swaddles, 0.5 TOG sleep bags, and crib sheets — we choose Tanboocel® Bamboo Viscose muslin, because an open muslin weave breathes best in the heat. Two premium fibers, each picked on purpose.

Why waffle. The waffle structure creates a million small air pockets across the surface of the fabric. Air is a better insulator than fiber. That's why waffle fabric feels warmer than its actual TOG suggests and breathes better than a flat-knit at the same weight. The texture also gives the bag a different hand than the smooth TENCEL™ — softer to the touch, with a quilted look that photographs well in the nursery.

Material. TENCEL™ Lyocell, woven into a waffle structure with DuPont™ Sorona insulation. Wood-pulp fiber, closed-loop production, OEKO-TEX Standard 100 certified. The Sorona traps warmth without adding bulk. The waffle does the rest.

The print. Mid-tone denim blue solid with a slight texture. Sits well alongside wood and white, reads as workwear, washes like a t-shirt.

Construction. Sleeveless. 2-way zipper opening from the bottom for diaper changes without unzipping past the chest. Soft fabric binding at the neck. Hidden seams against skin. The shoulder geometry is the same as the standard TENCEL™ sleep bag — snug fit at the shoulders is the safe-sleep dimension.

Waffle vs smooth TENCEL™. The smooth-weave TENCEL™ bag is the everyday workhorse. The waffle is the one that gets photographed and the one that gets requested by name at the next baby shower. Functionally similar, surface-different. Most households end up owning both.

Adjacent TOGs in the same print. Room running warm? The 0.5 TOG Muslin Sleep Bag in Denim Blue covers 75–81°F summer nurseries. Cold nursery in winter? The 2.5 TOG TENCEL™ Sleep Bag picks up at 61–68°F.

Sizing. 0–6M (8–18 lb), 6–18M (18–28 lb), 18–36M (28–38 lb).

Care. Machine wash cold, tumble dry low. The waffle structure holds up to repeated washing without flattening. Do not bleach. Iron only the non-printed areas if needed (most parents don't iron sleep sacks).

Safety details. Designed against the AAP's safe-sleep guidance. Independent third-party testing to CPSC, CPSIA, and ASTM. OEKO-TEX Standard 100 certified material. B Corp Certified parent brand.

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

Part of the Big Dreams Sleep System. Sleepers and sleep bags in Denim Blue are built to layer together through the night — same print, one system. Complete the set with the Waffle Sleeper.