A footed sleep sack offers several benefits for babies and toddlers. Firstly, it provides a cozy and enclosed sleeping environment, giving them a sense of security, much like being swaddled. Secondly, footed sleep sacks keep their feet covered and warm, helping regulate body temperature during sleep. This is especially useful in colder climates or during the winter months. Footed sleep sacks eliminate the need for separate socks, reducing the risk of them coming off and potentially posing a choking hazard.
Babies do not necessarily need layered clothing under a sleep sack. Many sleep sacks are designed so baby can sleep comfortably wearing just a diaper or onesie, especially in warmer weather. For cooler temperatures, adding a single layer like footed pajamas or a lightweight bodysuit under the sack is sufficient. Avoid overdressing by checking the TOG rating of the sack and recommended layers. More than 1-2 thin layers can cause overheating. Pick breathable fabrics like cotton no matter the temperature.
Sleep sacks are considered safe from newborn through toddlerhood, approximately ages 0-24 months. Specific safety features vary by age. Newborn sacks allow swaddling while older sacks offer free movement. Look for age-appropriate TOG ratings, size, and fabric breathability.