A nursery for babies can mean three different things depending on the context: a room in a hospital where newborns receive care after birth, a dedicated room at home set up for a baby’s sleep and daily needs, or a licensed childcare facility that cares for infants and toddlers. Each type of nursery serves a distinct purpose, and understanding what goes into them can help you prepare for whatever stage you’re in.
Hospital Nurseries and Levels of Care
Hospital nurseries are clinical spaces designed to monitor and care for newborns in the hours and days after delivery. Not all hospital nurseries are the same. The American Academy of Pediatrics classifies them into four levels based on what kind of care they can provide.
A Level I nursery is the standard well-baby nursery. It handles healthy, full-term infants and babies born between 35 and 37 weeks who are physiologically stable. Staff can perform newborn resuscitation and basic postnatal care, and they stabilize sicker or more premature babies until they can be transferred elsewhere. This is the type most parents picture when they think of a hospital nursery.
Level II is a special care nursery. It handles moderately ill infants or those born at 32 weeks or later weighing at least about 3.3 pounds. These nurseries can provide short-term breathing support, typically less than 24 hours of mechanical ventilation, and care for babies recovering after intensive treatment. Level III is a full neonatal intensive care unit (NICU), equipped for sustained life support, advanced imaging like MRI and echocardiography, and round-the-clock access to pediatric subspecialists and surgeons. Level IV is a regional NICU located within a hospital that can perform complex surgeries on newborns with serious congenital or acquired conditions.
Rooming-In vs. the Traditional Nursery
For most of the 20th century, newborns were routinely placed in a central nursery separate from their mothers and brought out only for feedings. That began to shift in the early 1940s, when a model called “rooming-in” started appearing in American hospitals. Doctors and mothers championed the approach as a way to foster bonding, and it also helped hospitals manage two practical problems at the time: a nursing shortage and a wave of infections spreading through crowded newborn nurseries.
Today, the WHO and UNICEF Baby Friendly Hospital Initiative recommends rooming-in as one of its ten steps to successful breastfeeding. Most hospitals now keep mother and baby together in the same room for the duration of the stay. That said, the separate nursery hasn’t disappeared entirely. Some hospitals still offer it so new parents can rest and recover, particularly after a difficult labor or cesarean delivery. Research on the topic is surprisingly limited. A Cochrane review found little strong evidence to conclusively favor one arrangement over the other, though rooming-in remains the default recommendation for encouraging breastfeeding.
Setting Up a Home Nursery
A home nursery is simply the room (or area of a room) where your baby sleeps, gets changed, and spends quiet time. It doesn’t need to be elaborate, but the sleep environment matters more than the decor. The centerpiece is a safe place for the baby to sleep: a crib, bassinet, portable crib, or play yard that meets Consumer Product Safety Commission (CPSC) standards.
For cribs specifically, the CPSC requires that slats be no more than 2⅜ inches apart, roughly the width of a soda can, so a baby’s body can’t slip through. Corner posts should be no higher than 1/16 of an inch to prevent clothing from catching. All hardware should be intact, and the mattress must be designed for that specific crib and fit tightly with no gaps. If you’re using a secondhand crib, check the CPSC recall database before putting it to use.
What Goes in the Crib
The short answer: almost nothing. The AAP recommends a firm, flat mattress with a fitted sheet only. No pillows, blankets, quilts, bumper pads, stuffed animals, or mattress toppers. Products like baby nests, pods, dock-a-tots, and inclined sleepers do not meet federal safety standards for sleep and should be avoided. If you’re worried about your baby getting cold, dress them in layers or use a wearable blanket. Weighted blankets, swaddles, or sleepers of any kind are also off the list. The sleep surface should not indent when your baby lies on it, and anything that inclines more than 10 degrees is not safe for sleep.
Temperature, Light, and Sound
Room climate plays a bigger role than many parents realize. Boston Children’s Hospital recommends keeping indoor humidity between 35 and 50 percent. Air that’s too dry or too humid can irritate a baby’s airways and make breathing harder. Most pediatric sources suggest a room temperature between 68°F and 72°F, though the key indicator is your baby: if their chest feels warm but not sweaty, the temperature is likely right.
Dim lighting helps babies settle because it reduces stimulation and signals that it’s time to rest. Blocking out morning light with curtains or blinds can also help babies sleep longer. For sound, consistency matters more than silence. Babies tend to wake easily from sudden noises or changes in background sound levels, so a steady source of white noise or soft rain sounds can help them fall asleep and stay asleep. If you use a sound machine, keep it at a low volume and place it well away from your baby’s ears to protect their hearing.
Smart Monitors in the Modern Nursery
Baby monitors have evolved well beyond the audio-only devices of previous decades. Current smart monitors offer HD video with night vision, two-way audio, cry detection, and room temperature readings. Some use AI to detect when a baby rolls over, has a covered face, or stands up in the crib, sending alerts directly to your phone.
A few go further into health tracking. The Owlet Dream Sock, for example, is an FDA-cleared pulse oximetry device that reads a baby’s heart rate and oxygen levels through a sensor worn on the foot, similar to the clip hospitals use on adult fingertips. Other monitors like the Nanit Pro track sleep patterns over time and flag when a child leaves the crib. These tools can offer reassurance, especially for anxious first-time parents, but they’re supplements to safe sleep practices rather than replacements for them.
Daycare Nurseries for Infants
Outside the home and hospital, “nursery” also refers to a licensed childcare facility that accepts babies and very young children. These are sometimes called infant rooms within a larger daycare center. Licensing requirements vary by state, but staffing ratios for infants are consistently the strictest of any age group. In New York, for instance, regulations define an infant as a child up to 18 months old and require one caregiver for every two children under age two, whether in a family daycare home or a group family daycare setting.
When evaluating a daycare nursery, the staff-to-child ratio is one of the most important numbers to ask about. Lower ratios mean more individual attention, faster response to crying, and closer supervision during sleep. Most states publish their ratio requirements through their childcare licensing agency, so you can check what’s legally required in your area and compare it to what a facility actually maintains during your visit.