Transitioning your toddler from a sleep sack to a blanket isn’t exactly intuitive. When is it safe? How big should the blanket be? How heavy? What happens when he kicks it off? According to the American Academy of Pediatrics (AAP), once babies hit the 12-month mark, it’s no longer a suffocation risk to outfit cribs with pillows and blankets. Look for crib-sized covers that are lightweight and breathable, like aden + anais’ bamboo dream blankets ($59.95) or Coyuci’s organic toddler-sized blankets. If you still feel squirmy about the idea of a blanket, or get stressed when baby kicks it off, opt for super-cozy PJ’s, like Lands End’s fleece sleepers ($39), the fleecy cozy-up snuggle suit from Hanna Andersson ($38.40), or Snug Organics’ 100 percent organic cotton sherpa sleeper ($58). Tots can get really excited about their first pillow, too. For an age-appropriate head rest, check out Sprout San Francisco’s organic toddler pillow ($39) or the organic one from Naturepedic ($49). And when it comes to ensuring the room isn’t too hot or too cold, we dig aden + anais’ handy serenity star, which glows red or blue if the temp goes above or below the recommended 68°F to 72°F range.