When it comes to how long you should let your newborn sleep, it is typically recommended that you do not wake a sleeping newborn unless they haven’t fed for about 4 to 5 hours. However, once newborns establish good weight gain and are healthy, you can let them sleep for longer periods. Generally speaking, newborns sleep a lot, often up to 16 to 17 hours a day in the first weeks, and slowly dropping to 14 to 15 hours by the time they reach 6 months of age.
Understanding Newborn Sleep Patterns
The First Few Weeks
Newborns don’t yet have a sense of night and day. They sleep around the clock, divided into intervals of 1 to 3 hours because their small stomachs cannot hold enough breast milk or formula to keep them satisfied for long. Their sleep is not a continuous, peaceful slumber but rather a series of naps. This stage requires patience and a lot of flexibility from parents.
Weight Gain and Feeding Considerations
In the early days, pediatricians focus on a newborn’s weight gain as a sign of healthy growth. Weight checks are a part of regular pediatric visits. To ensure that newborns are eating enough and gaining weight appropriately, many experts advise waking them every 2 to 3 hours to feed if they haven’t awakened by themselves. As they grow and put on weight, you can increasingly let them sleep longer.
Establishing a Sleep Schedule
While it would be wonderful if newborns conveniently adapted to a structured sleep schedule, that’s rarely the case. Newborns will sleep anytime, anywhere, according to their own need for rest and nutrition. However, by observing your baby’s sleep patterns and needs, you’ll gradually be able to predict when they’ll likely fall asleep and for how long.
Our Top 5 Sleep Aid Picks
Updated September 2026Nature's Bounty Melatonin Quick Dissolve Tablets, 45 Count, 2-Pack
Best for most people. Quick-dissolve melatonin tablets from a widely stocked brand, taken without water. Two bottles per pack.
- Quick-dissolve tablets
- Melatonin
- 45 count × 2
Best when pain keeps you up. Pairs a pain reliever with a sleep aid in one caplet, for nights when headaches or muscle aches are the real problem.
- Naproxen sodium 220 mg
- Diphenhydramine 25 mg
- Non-habit forming
- 80 caplets
MidNite Sleep Aid Chewable Cherry Tablets, 30 Count, 4-Pack
Best chewable. Cherry-flavoured chewables for occasional sleeplessness, no water needed. Four bottles in the value pack.
- Chewable cherry tablets
- For occasional sleeplessness
- 30 count × 4
NOW Foods Melatonin 5 mg, 180 Veg Capsules, 2-Pack
Best value. High-potency 5 mg veg capsules, 180 to a bottle and two bottles per pack, so one order lasts months.
- 5 mg melatonin
- Veg capsules
- 180 count × 2
Natrol Melatonin 10 mg Gummies, 140 Count
Best gummy. Higher-strength 10 mg strawberry gummies for adults who would rather chew than swallow a pill. About a 70-day supply.
- 10 mg melatonin
- Strawberry gummies
- Drug-free
- 140 count
Safe Sleep Tips for Newborns
Ensuring your newborn sleeps safely is as important as figuring out how long they should sleep.
Back-to-Sleep
Always place your baby on their back to sleep, not on the stomach or side, to reduce the risk of Sudden Infant Death Syndrome (SIDS). This position is safest unless your pediatrician advises otherwise due to specific medical conditions.
The Sleep Environment
The crib or bassinet should be clear of blankets, bumpers, stuffed animals, or pillows. A firm mattress with a fitted sheet is the ideal sleeping surface. Room sharing without bed-sharing is recommended by the American Academy of Pediatrics for the first 6 months to a year, if possible, as it can decrease the risk of SIDS by as much as 50%.
Swaddling
Swaddling can be soothing for some babies and help them sleep better. However, it’s vital to swaddle correctly to avoid risks such as overheating or allowing the fabric to become unraveled and potentially cover the baby’s face.
Monitoring Your Newborn’s Development Through Sleep
As your newborn grows, their sleep patterns will evolve. It’s important to understand these changes and what they mean for your baby’s development.
Newborn Sleep Through the First Year
As mentioned, newborns typically sleep between 16 and 17 hours per day. At around 3-4 months, sleep cycles begin to lengthen, and by six months, many babies can sleep for stretches of 5 to 6 hours without the need for a feed. By their first birthday, many infants sleep around 14 hours over a 24-hour period.
Signs of Developmental Progress
When your baby begins to sleep for longer stretches at night and settling into a more predictable nap schedule during the day, take it as a promising sign of development. It indicates maturing sleep-wake cycles and an increase in the capacity to go longer periods without feeding.
When to Consult a Healthcare Provider
There are times when you should seek advice from a healthcare professional regarding your newborn’s sleep.
Signs of Distress or Sleep Disorders
If your baby is not sleeping at all, excessively sleepy, or shows signs of respiratory issues such as persistent snoring or pauses in breathing known as apnea, it may be worth discussing with your pediatrician. Likewise, if you have concerns about your newborn’s weight gain and feeding schedule, consulting with a healthcare provider is the best course of action.
Understanding Sleep Cues and Needs
All babies are different, and while one may sleep through the night earlier than another, it doesn’t necessarily indicate a problem. The key is to work closely with your pediatrician to understand your particular child’s needs and ensure that their sleep patterns are healthy and appropriate for their stage of development.
Helping Your Newborn Sleep Better
There are several strategies parents can employ to encourage better sleep habits in their newborn.
Routine and Consistency
Establishing a bedtime routine even at a very young age can be beneficial. This could include a bath, a quiet story, or soft singing. Routine and consistency help signal to your baby that it’s time to wind down for sleep.
Avoiding Overstimulation
Before bedtime, keep activities calm and soothing. Loud sounds, bright lights, and active play can make it harder for your newborn to settle down.
Recognizing Sleep Readiness
Learn to recognize your baby’s signs of sleepiness, such as rubbing eyes, yawning, looking away, or fussing. Getting your newborn down to sleep when they first show these signs can be much easier than waiting until they are overtired.
Finishing Thoughts
Understanding how long to let your newborn sleep involves a balance of ensuring they get enough rest and are feeding well to support their growth. It’s about paying close attention to their unique patterns and developmental needs, and keeping their sleep environments safe and conducive to good, restful sleep. Remember, every baby is different; some may quickly settle into a routine while others may take a little longer. Patience and flexibility coupled with guidance from your pediatrician will ensure your newborn sleeps soundly and healthily. If you ever have concerns about your newborn’s sleep or overall health, don’t hesitate to reach out to your healthcare provider. Your journey with your newborn is unique, and together with professional support and your loving care, you’ll navigate through the sleepless nights towards the joyous milestones ahead.
