The ideal temperature for a baby's nursery at night is between 68-72°F (20-22°C), with 70°F (21°C) being the sweet spot. This temperature range helps reduce the risk of Sudden Infant Death Syndrome (SIDS) while keeping your baby comfortable and promoting better sleep.
Most pediatricians and sleep experts recommend keeping your baby's room between 68-72°F at night. This cooler temperature is optimal because it helps regulate your baby's body temperature and promotes deeper, safer sleep. Rooms that are too warm increase the risk of overheating, which is a known SIDS risk factor. A consistent temperature also helps establish a healthy sleep environment that signals to your baby's body that it's time to rest.
Understanding the importance of room temperature goes beyond simple comfort—it's a critical safety factor for infant sleep. Babies are less efficient at regulating their own body temperature compared to older children and adults, making them vulnerable to both overheating and getting too cold during sleep.
Why Cooler is Better: A cool room helps prevent overheating, which research has consistently linked to increased SIDS risk. When babies overheat, they may sleep more deeply than normal, making it harder for them to arouse if they experience breathing difficulties. Additionally, a cool environment naturally encourages your baby to stay nestled under appropriate bedding rather than kicking it off, which can pose safety hazards.
The Goldilocks Zone: While 68-72°F is the recommended range, individual babies may have slight preferences within this window. Some babies sleep better at the cooler end (68°F), while others prefer it slightly warmer (72°F). The key is finding consistency and monitoring your baby for signs of being too hot or too cold.
Seasonal Adjustments: During winter months when heating systems are running, you may need to actively cool the room or crack a window to maintain the ideal temperature. In summer, air conditioning becomes essential. The goal is maintaining that consistent 68-72°F range year-round, not allowing seasonal fluctuations to drastically change the nursery environment.
Signs Your Baby is Too Hot: Watch for excessive sweating, flushed cheeks, rapid breathing, or damp hair. Your baby may also seem fussy or restless. If you notice these signs, gradually lower the room temperature and reduce bedding or sleep clothing.
Signs Your Baby is Too Cold: If your baby's nose, ears, or hands feel cold to the touch, or if they seem unusually fussy and won't settle, the room may be too cold. However, remember that babies naturally have cooler extremities, so this isn't always a sign of being cold overall.
The American Academy of Pediatrics (AAP) emphasizes that an appropriately cool sleep environment is one of the most important factors in reducing SIDS risk. Dr. Rachel Moon, who chairs the AAP's SIDS task force, has noted that room temperature is one of the few environmental factors parents can easily control and modify. Sleep experts also recommend that the cool temperature becomes part of a broader sleep hygiene routine—similar to establishing a consistent bedtime and reducing light exposure.
The National Institute of Child Health and Human Development similarly supports the 68-72°F range as part of their safe sleep recommendations. These organizations recognize that while many factors contribute to safe infant sleep, temperature regulation is one where parents have direct control and measurable impact.
Rather than guessing whether your nursery is at the right temperature, invest in a reliable digital room thermometerAs an Amazon Associate I earn from qualifying purchases.
← Back to All Reviews AmazonThe American Academy of Pediatrics recommends keeping a baby's nursery between 68-72°F (20-22°C) at night. This temperature range helps reduce the risk of SIDS while keeping your baby comfortable and preventing overheating during sleep.
Yes, 75°F is too warm for a baby's nursery and increases the risk of overheating and SIDS. Aim to keep the room cooler, ideally between 68-72°F, and dress your baby appropriately for sleep rather than relying on a warm room.
Yes, slightly cooler temperatures at night (68-72°F) promote better sleep quality and reduce overheating risks compared to daytime temperatures. A cooler room also naturally aligns with your baby's circadian rhythm and helps signal that it's time for sleep.
Use a reliable room thermometer to monitor the temperature and adjust with a space heater or air conditioner as needed. If you can't maintain the ideal range, dress your baby in appropriate sleep layers (like a sleep sack) and avoid blankets, pillows, or bumpers that could cause overheating.