When preparing for a newborn, essential items include a safe sleeping space, such as a crib or bassinet, along with a firm mattress and fitted sheets. You'll also need diapers, wipes, and a changing table for diaper changes, as well as clothing like onesies and sleep sacks to keep your baby comfortable. Feeding supplies are crucial, whether you choose breastfeeding or formula feeding. For breastfeeding, consider a nursing pillow and breast pump. If using formula, have bottles and a bottle warmer on hand. Additionally, a baby monitor can help you keep an eye on your little one while they sleep.