According to the American Academy of Pediatrics, infants should sleep on a firm mattress with just a fitted sheet, wear an appropriate outfit for the room's temperature, and sleep without additional objects (including blankets, pillows, and toys). The key takeaways are to avoid overheating and keep the crib free of sleeping hazards, which leads us into our top clothing recommendation: sleep sacks.
Think of sleep sacks as a wearable blanket but better. From fuss-free zippers to a cozy yet breathable fit, the blanket replacement is even recommended by Mayo Clinic. There are different sizes for almost every baby's length and weight, plus a variety of fabrics to suit their sensitive skin. What's more, you can choose from traditional arms-out sleep sacks, ones that double as swaddles, and toddler-friendly versions with feet openings.