Daytime Sleepiness in Babies and Toddlers
Medically reviewed by Dr. Sarah Chen, MD, FAAP · Board-Certified Pediatrician
Content reviewed against published AAP, AAP, NIH guidelines
Last reviewed:
Sleep concerns affect nearly every family at some point. When it comes to daytime sleepiness in babies and toddlers, here is what the guidelines recommend.
The short answer
Some daytime sleepiness in babies and toddlers is completely normal - young children need significantly more sleep than adults, and napping is an essential part of their day. However, excessive sleepiness that goes beyond normal nap needs, particularly sleepiness that interferes with feeding or that represents a change from your child's baseline, deserves attention.
Key takeaways
- Some daytime sleepiness in babies and toddlers is completely normal - young children need significantly more sleep than adults, and napping is an essential part of their day. However, excessive sleepiness that goes beyond normal nap needs, particularly sleepiness that interferes with feeding or that represents a change from your child's baseline, deserves attention.
- Usually normal when: Your baby is sleepy within age-appropriate wake windows and naps the expected number of times per day
- Call your doctor if: A newborn who is very difficult to wake, will not feed, or is having fewer than the expected number of wet diapers needs urgent evaluation for jaundice, infection, or dehydration
- Varies by age — see the age-by-age breakdown below
“To reduce the risk of sleep-related infant deaths, the AAP recommends that infants sleep on their backs, on a firm, flat surface, without any soft bedding.”
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What Parents Should Know
According to AAP, NIH guidelines, some daytime sleepiness in babies and toddlers is completely normal - young children need significantly more sleep than adults, and napping is an essential part of their day. However, excessive sleepiness that goes beyond normal nap needs, particularly sleepiness that interferes with feeding or that represents a change from your child's baseline, deserves attention. At 0-3 months, newborns sleep 14-17 hours per day and may only be awake for 45-90 minutes at a time, so frequent daytime sleepiness is expected. In the first 2 weeks, extra sleepiness is common, but babies should still wake to feed at least every 2-3 hours. A newborn who is excessively difficult to wake, does not rouse for feeds, or is not having adequate wet diapers needs medical evaluation - these can be signs of jaundice, infection, or dehydration. It is generally considered normal when your baby is sleepy within age-appropriate wake windows and naps the expected number of times per day. However, you should contact your pediatrician promptly if a newborn who is very difficult to wake, will not feed, or is having fewer than the expected number of wet diapers needs urgent evaluation for jaundice, infection, or dehydration.
Normal vs. Concerning
By Age
What to expect by age
0-3 months
Newborns sleep 14-17 hours per day and may only be awake for 45-90 minutes at a time, so frequent daytime sleepiness is expected. In the first 2 weeks, extra sleepiness is common, but babies should still wake to feed at least every 2-3 hours. A newborn who is excessively difficult to wake, does not rouse for feeds, or is not having adequate wet diapers needs medical evaluation - these can be signs of jaundice, infection, or dehydration.
3-6 months
Babies at this age need about 14-15 hours of total sleep, including 3-4 daytime naps. Sleepiness is expected within age-appropriate wake windows. If your baby is sleeping significantly more than typical and seems harder to engage during awake periods, or if daytime sleepiness is new and accompanied by poor feeding, it is worth mentioning to your doctor. Growth spurts can temporarily increase sleepiness for 2-3 days.
6-12 months
Total sleep needs are about 12-15 hours, with 2-3 daytime naps. A baby who is drowsy outside of nap times may be getting poor-quality nighttime sleep - consider whether snoring, mouth breathing, or restless sleep are present. If daytime sleepiness comes on suddenly or your baby falls asleep in situations where they are usually alert (during play, in the high chair), this warrants evaluation.
12-36 months
Toddlers need 11-14 hours of total sleep. A well-rested toddler on an appropriate schedule should be alert and energetic during awake times. If your toddler is falling asleep at unusual times - during meals, while playing, or while watching a show - this may indicate poor nighttime sleep quality, sleep-disordered breathing, or a medical issue such as anemia. Excessive sleepiness that persists beyond a brief illness should be evaluated.
What to Tell Your Pediatrician
- Describe when you first noticed daytime sleepiness in babies and toddlers and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if your baby or toddler seems sleepier than usual for more than a few days without an obvious explanation like illness or schedule changes.
- Mention if daytime sleepiness is accompanied by snoring, mouth breathing, or restless sleep at night - this may indicate obstructive sleep apnea.
- Bring a list of any questions or observations you want to discuss at the appointment.
What Should You Do?
When to take action
- Your baby is sleepy within age-appropriate wake windows and naps the expected number of times per day
- Brief periods of extra sleepiness during a growth spurt, after vaccinations, or while fighting a mild illness
- Your baby is alert, engaged, and feeding well during awake periods between naps
- Increased sleepiness for 1-2 days during a sleep regression or developmental leap that then resolves
- Your baby or toddler seems sleepier than usual for more than a few days without an obvious explanation like illness or schedule changes
- Daytime sleepiness is accompanied by snoring, mouth breathing, or restless sleep at night - this may indicate obstructive sleep apnea
- Your toddler is falling asleep at inappropriate times like during meals or active play
- You notice excessive sleepiness along with pallor, reduced activity, or decreased appetite
- A newborn who is very difficult to wake, will not feed, or is having fewer than the expected number of wet diapers needs urgent evaluation for jaundice, infection, or dehydration
- Sudden onset of extreme sleepiness or lethargy in any child, especially after a head injury, with fever, or with a stiff neck - seek emergency care immediately
What You Can Do at Home
- Keep track of when you notice daytime sleepiness in babies and toddlers — noting the time of day, duration, and any triggers can help your pediatrician.
- Remember that your baby is sleepy within age-appropriate wake windows and naps the expected number of times per day — this is generally within the range of normal.
- At 0-3 months, focus on observation rather than intervention unless your pediatrician advises otherwise.
- Maintain a consistent bedtime routine. Keep the sleep environment cool, dark, and quiet.
- While monitoring at home, seek immediate care if a newborn who is very difficult to wake, will not feed, or is having fewer than the expected number of wet diapers needs urgent evaluation for jaundice, infection, or dehydration.
Related Resources
Baby Sleep Guide
Age-by-age sleep needs, schedules, and evidence-based sleep strategies.
Month-by-Month Development
Detailed monthly development guides from birth through 24 months.
When to Call the Doctor
General guide on when to call the pediatrician, visit urgent care, or go to the ER.
Frequently asked questions
Is daytime sleepiness in babies and toddlers normal?
When should I call the doctor about daytime sleepiness in babies and toddlers?
When is daytime sleepiness in babies and toddlers normal?
What causes daytime sleepiness in babies and toddlers?
What should I mention to my pediatrician about daytime sleepiness in babies and toddlers?
Is daytime sleepiness in babies and toddlers normal at 0-3 months?
Is daytime sleepiness in babies and toddlers normal at 3-6 months?
Should I go to the ER for daytime sleepiness in babies and toddlers?
Does daytime sleepiness in babies and toddlers go away on its own?
References
Doctor Visit Checklist
Bring this checklist to your next pediatrician visit to discuss Daytime Sleepiness in Babies and Toddlers.
Things to mention
- Describe when you first noticed daytime sleepiness in babies and toddlers and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if your baby or toddler seems sleepier than usual for more than a few days without an obvious explanation like illness or schedule changes.
- Mention if daytime sleepiness is accompanied by snoring, mouth breathing, or restless sleep at night - this may indicate obstructive sleep apnea.
- Bring a list of any questions or observations you want to discuss at the appointment.
Observations to share
- Your baby or toddler seems sleepier than usual for more than a few days without an obvious explanation like illness or schedule changes
- Daytime sleepiness is accompanied by snoring, mouth breathing, or restless sleep at night - this may indicate obstructive sleep apnea
- Your toddler is falling asleep at inappropriate times like during meals or active play
Urgent signs to report immediately
- A newborn who is very difficult to wake, will not feed, or is having fewer than the expected number of wet diapers needs urgent evaluation for jaundice, infection, or dehydration
- Sudden onset of extreme sleepiness or lethargy in any child, especially after a head injury, with fever, or with a stiff neck - seek emergency care immediately
My notes
From ismybabyalright.com — free, evidence-based baby health guides
All content follows our editorial policy and is reviewed against published clinical guidelines.
2,705 evidence-based guides6 authoritative medical sources5 medical advisory board members
Related Resources
Bottom line
Most cases of daytime sleepiness in babies and toddlers are normal. Talk to your pediatrician if a newborn who is very difficult to wake, will not feed, or is having fewer than the expected number of wet diapers needs urgent evaluation for jaundice, infection, or dehydration.
Trust your instincts. If something feels wrong, reach out to your pediatrician. Worrying about your baby means you care — that is a good thing.
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Related Sleep Concerns
How Long Should Baby Be Awake Between Naps?
The ideal awake time between naps (called a "wake window") increases as your baby grows. Newborns may only handle 45-90 minutes awake, while toddlers can manage 4-6 hours. Getting wake windows right is one of the most effective ways to improve nap quality, because both too-short and too-long wake times lead to poor sleep.
Is a Bath Before Bed Really Necessary?
A nightly bath is not medically necessary and some babies with sensitive skin do better with less frequent bathing. However, a warm bath can be a powerful sleep cue because the subsequent body temperature drop triggers melatonin production. If you include a bath, keep it calm and warm rather than stimulating.
How Long Should the Bedtime Routine Be?
An ideal bedtime routine for babies and toddlers is 20-30 minutes. Shorter routines may not give enough time to wind down, while routines longer than 45 minutes can become a stalling tactic. Consistency in the routine order matters more than exact length.
Is My Baby's Bedtime Too Early?
For most babies over 3 months, bedtime between 6:00-8:00 PM is appropriate. A bedtime that is too early can cause early morning wakings (before 6 AM) or long periods of wakefulness in the middle of the night. However, during nap transitions or on days when naps were short, an earlier-than-usual bedtime helps prevent overtiredness.
Is My Baby's Bedtime Too Late?
For babies over 3-4 months, consistently going to bed after 8:30-9:00 PM may result in overtiredness, which paradoxically makes it harder to fall asleep and stay asleep. Cortisol rises when babies are overtired, leading to more night wakings and early mornings. Moving bedtime earlier, even by 15-30 minutes, often improves overnight sleep quality.
Is It Dangerous for My Baby to Sleep in a Car Seat?
Babies should not be left to sleep in car seats outside of the car. Car seat-related deaths are most often caused by positional asphyxia, which occurs when a baby's head falls forward, compressing the airway. While car seats are essential and safe for travel, the AAP recommends transferring your sleeping baby to a firm, flat sleep surface as soon as you reach your destination. Never use a car seat as a substitute for a crib or bassinet.