Yes, baby sleep bags are generally safe for newborns when used correctly. Hushabye sleep bags, for instance, are designed with soft, breathable fabrics to help regulate a baby’s body temperature, reducing the risk of overheating. They eliminate the need for loose blankets, which can be a suffocation hazard. Sleep bags also promote safe sleep by preventing babies from accidentally rolling over or kicking off covers. Ensure the sleep bag fits well and is appropriate for the baby's age and weight to maximize safety and comfort during sleep.