Duomiaomiao Bamboo Baby Sleep Sack

Buttery is the word owners keep reaching for, and bamboo-derived rayon earns it: smooth, cool to the touch, soft in a way cotton doesn't quite match. The 95% rayon, 5% spandex blend has enough give to move with a rolling, kicking baby, and at 1.0 TOG it holds a comfortable temperature in rooms between 68 and 75°F without winter-weight bulk. Sizing runs true and the fabric doesn't shrink, so a sack bought at the start of a growth spurt still fits at the end of it. The bottom opens wide on a two-way zipper for fast diaper changes, with a collar guard and full-length zipper backing between the hardware and your baby's skin. Machine washable, though the thicker interior may want a second pass through the dryer.