Do babies need to sleep in the dark?
John Thompson
Updated on January 08, 2026
Some parents suggest that a nursery should be light during the day time, during naps for example, and dark at night so as to avoid confusion. The short answer is yes, babies should sleep in a dark room, for all sleeps.
Should infants sleep in dark or light?
MYTH: Your baby should sleep in a light room during the day so they know it isn't night time. FACT: Daytime and nighttime means very little to your baby, so being in a light or a dark room won't change that.Is it OK for baby to sleep with light on?
Infants eyes let in more light and are much more sensitive than adults' eyes and so just a short blast of bright light can suppress melatonin and its sleep promoting effect. No screens at least 2 hours before bedtime is ideal and should be the norm.How dark should my baby's room be at night?
With my sleep consulting clients, I recommend darkening their child's bedroom to a 9 or 10 out of 10. This helps with melatonin production which aids in sleep. A dark, cave like sleep environment can help to solve common challenges, including difficulty napping, falling asleep at bedtime and early bird wake ups.Should babies sleep in a dark room during the day?
You don't have to worry that your little one will only sleep in a dark room for naps. It's just the most optimal sleep conditions; they can still sleep in a well-lit room. It just won't be as good of sleep! You don't have to condition them to sleeping in well-lit areas either.Should my baby be sleeping in a dark room?
Are babies afraid of dark?
To answer our question - NO. Babies don't have a fear of the dark. Sometimes when we are sleep training, once we walk into the child's room they actually start to cry. This is short-term and actually a good indicator to you that they are beginning to learn the cues for sleep.When should you introduce a night light?
Babies, sleep and red lightIt's a good idea, however, to introduce a red night light soon after your little one turns 4 months. At this age, they can start to develop a fear of the dark when they wake in the night.
What is the best sleeping environment for a baby?
A baby should sleep in a room that is quiet, dark and at a slightly cool temperature. Consider dressing your baby in sleepers so that you don't need a blanket to cover her. Keep your baby away from cigarette smoke.Should toddler sleep in complete darkness?
Key Points: Toddlers should sleep in the dark because darkness triggers melatonin production which is vital for sleep. Darkness also reduces the chance of your toddler being too stimulated by their surroundings to sleep. Your toddler should be exposed only to dim lighting for an hour before bedtime.What color night light helps baby sleep?
Sleep therapists recommend red night lights because it promotes restful sleep. This is because red light doesn't emit any blue wavelengths, which can suppress melatonin production. Amber lights are also good nursery lights that won't interfere with an infant's sleep.Is it OK to leave white noise on all night?
According to the American Academy of Pediatrics, the recommended level is 50 decibels and at least 7 feet away. You also shouldn't leave a white noise machine on all night.Can babies see in the dark?
In this ArticleHowever, newborns cannot see very far -- only objects that are 8-15 inches away. Newborns prefer to look at faces over other shapes and objects and at round shapes with light and dark borders (such as your adoring eyes). Just after birth, a baby sees only in black and white, with shades of gray.