Early Morning Wake-Ups in Spring and Summer: What’s Behind Them

Key Takeaways:

• Extra light exposure in the spring and summer months can cause babies to wake up earlier than normal.
• Consistent routines, including limiting light exposure at night and calming activities before bed, can help babies adjust to increased light for better sleep.
• Hatch Baby helps families create gentle routines with sound and light, and every device includes 24/7 sleep chat to troubleshoot early wake-ups and more.

Baby suddenly babbling (or crying?) in the crib at 5 AM? First: Oof. Been there. Second: Frustrating as they are, earlier-than-normal wake-ups can be totally normal, especially with the seasonal increase in light exposure. Your baby’s circadian rhythm is still developing, making them more sensitive to environmental changes — so even a bit of light in their sleep space can disrupt sleep.

With a bit of strategy, you can get baby’s sleep back on track (and yours too). In this article, learn more about how daylight affects baby sleep, what you can do to prevent early wake-ups during the spring and summer months, and how Hatch Baby has your back through it all.

Table of Contents

1. Why Babies Wake Up Earlier When It Gets Lighter
2. How to Handle Seasonal Changes in Baby Sleep
3. FAQs
4. References

Why Babies Wake Up Earlier When It Gets Lighter

Earlier wake-ups in babies are common — though understandably frustrating — during the transitions of spring and summer. In darkness, the body produces melatonin to support sleep, but increasing light in the early morning hours can suppress melatonin sooner than usual. While you may be able to sleep through this change, babies’ circadian rhythms are still developing, making them more sensitive to changes in light and environmental cues. So that shift can nudge a baby’s circadian rhythm earlier, leading them to wake up earlier than normal.

This can sometimes cause a snowfall effect: If the baby consistently wakes up earlier than usual and is not getting enough overnight sleep, they may be overtired by bedtime. And, counterintuitively, overtired babies often have a harder time settling down for sleep — causing the cycle to continue. Developmental milestones like learning to roll, sit, crawl, or walk can add another layer of disruption to a baby's sleep routine.

How to Handle Seasonal Changes in Baby Sleep

Even when daylight comes earlier, there’s a lot you can do to help baby get the sleep they need. Here are a few places to start.

Maintain Consistent Bedtime and Wake-Up

A baby’s circadian rhythm thrives on consistency, so try to keep both bedtime and wake-up time as predictable as possible. Aim for an age-appropriate bedtime based on wake windows — for example, a three-month-old may only stay awake for 60-90 minutes at a time, while a one-year-old can handle 4-5 hours — but both still need plenty of total sleep across the day. If your baby wakes up early, keep things calm and low-stimulation. Too much interaction can signal it’s time to start the day and reinforce those early wake-ups.

Tailor Baby’s Sleep Environment

Your baby’s sleep space can play a big role in their ability to fall and stay asleep — and when they wake up. Keep their room as dark as possible, ideally with black-out curtains. At bedtime, turn off overhead lights and use a gentle Hatch Baby nightlight instead (we recommend amber light to support their internal clock). Because mornings in the busy spring and summer months can come with extra noise, playing a calming audio through the night — like brown or pink noise — can help baby sleep for longer stretches. A bonus: Playing the same sound each night can also support baby’s circadian rhythm.

Use Morning Light Strategically

Once baby is up for the day, prioritize morning light exposure. Whether you open the blinds throughout the home or go outside for a walk in the fresh air, sunlight tells your baby it’s time to wake up for the day and reinforces their circadian rhythm to promote melatonin production later. If you can’t get natural light, don’t stress: Turning on the overhead lights or a stimulating blue light on your Hatch Baby can also help.

At the same time, try to limit light exposure before your desired wake time — using blackout curtains or keeping the room dim can help prevent early morning light from signaling that it’s time to start the day too soon.

Keep Up Your Routines

Progress takes time. It may take several days of consistency for your baby’s internal clock to adjust and for wake-ups to shift later. Try to keep bedtime, wake-up routines, and your response to early waking as consistent as possible to reinforce the change.

Even small differences, like when you start the day or how you respond to early morning stirring, can send helpful signals to your baby’s body about when it’s time to sleep and wake. Stick with your routine, even if it doesn’t seem to be working right away. Remember: These shifts are gradual, but they do add up.

Learn how Hatch Baby can help you troubleshoot early wakings and more with 24/7 sleep chat and gentle light and sound routines.

Frequently Asked Questions

What time counts as an early morning wake-up for babies?

Most sleep experts consider anything before about 6:00 AM to be an early waking for many babies, though exact targets vary by age and family schedule.

Will my baby outgrow early morning wakings on their own?

Sometimes, but not always. If environmental light or schedule factors are contributing, small adjustments often help resolve the pattern more quickly.

Can moving bedtime later fix early wake-ups?

In many cases, no. Overtiredness can actually make early waking worse, so an earlier, well-timed bedtime is often more effective.

References

1. Blume, C., Garbazza, C., & Spitschan, M. (2019). Effects of light on human circadian rhythms, sleep and mood. Somnologie : Schlafforschung und Schlafmedizin = Somnology : sleep research and sleep medicine, 23(3), 147–156. https://doi.org/10.1007/s11818-019-00215-x
2. Mead M. N. (2008). Benefits of sunlight: a bright spot for human health. Environmental health perspectives, 116(4), A160–A167. https://doi.org/10.1289/ehp.116-a160
3. Mindell, J. A., Telofski, L. S., Wiegand, B., & Kurtz, E. S. (2009). A nightly bedtime routine: impact on sleep in young children and maternal mood. Sleep, 32(5), 599–606. https://doi.org/10.1093/sleep/32.5.599
4. Riedy, S. M., Smith, M. G., Rocha, S., & Basner, M. (2021). Noise as a sleep aid: A systematic review. Sleep Medicine Reviews, 55, 101385. https://doi.org/10.1016/j.smrv.2020.101385