Home » Forum » Why do you swaddle a baby? Why do you swaddle a baby? MelissaTo swaddle or not to swaddle, why do you swaddle a baby? Olivia: You should be swaddling your newborn baby. Reasons: 1. Sleep Better. 2. Basis for soothing. 3. Improved neuromuscular development. 4. Reduce SIDS. 5. Cry Less.