Start by matching the weight and size to your child’s age and the room temperature. Woolino offers newborn and toddler options, so pick a category that fits your child’s current stage and growth pace. Consider how active your child is and whether you need a lighter layer for warmer nights or a snug option for cold rooms. Always check the overall fit to ensure room to move without excess fabric.

Merino wool naturally balances warmth and breathability to keep your child comfortable throughout the night. Its fibers wick moisture, resist odor, and stay soft with wear, reducing overheating. In cooler bedrooms it provides warmth without bulk; in warmer rooms it allows air to circulate while still offering a cozy layer. Brands like Woolino use merino wool to create sleep sacks designed for temperature regulation and everyday comfort.

For a newborn in a cool room, opt for a lighter weight sleep sack with a snug, safe fit. For a toddler who moves a lot, choose a slightly longer, snugger design that still leaves no loose fabric. Always prioritize a proper shoulder fit and a length that reaches the child's ankles without bunching. This approach helps maintain consistent warmth while allowing safe movement.

Wash the sleep sack on a gentle wool cycle using a detergent formulated for wool. Avoid high heat and tumble drying; lay flat or hang to air dry. Do not use fabric softeners or bleach, and follow the care label for any specific instructions. Regular gentle care helps maintain warmth, softness, and overall safety over time.

Begin with your child’s current age, growth expectations, and the room temperature typical in your home. Choose a lighter weight for mild nights and a mid or heavier weight for colder seasons. Ensure the chosen size offers enough room to wiggle without excess fabric that could cover the face. If in doubt, go for a slightly larger size that still fits at the shoulders.

Follow standard safe sleep guidelines by using the sleep sack as the sole sleep layer without loose blankets. Ensure the neck and arm openings fit properly and the zipper or fasteners are secure and smooth. Check that the layer works with any existing baby gear and that the fabric allows your child to move safely without overheating. Regularly inspect for wear and tear that could affect safety.