Baby Sleep Tracker — Log and Understand Your Baby's Sleep
Track naps, night sleep, and wake windows
Track Naps, Night Sleep & Wake Windows
Track your baby's sleep, monitor wake windows, and get a daily sleep score. All data stays on your device.
Babysential's baby sleep tracker gives you a clear picture of your little one's rest — day and night. Log every nap and nighttime stretch, monitor wake windows in real time, and receive a daily sleep score based on WHO and AAP guidelines for your baby's age.
Sleep patterns change rapidly in the first year. This free sleep log helps you spot trends — like a shifting nap schedule or a developing sleep regression — so you can adjust routines before overtiredness sets in. All data is stored privately on your device; nothing is uploaded to a server.
Whether you're tracking a newborn's erratic catnaps or a toddler's single afternoon nap, the tracker adapts to any age. Pair it with our soothing sounds for bedtime routines, or read our guide on reading your baby's sleep cues.
Why track your baby's sleep?
Understanding your baby's sleep patterns helps you establish healthy routines and identify potential issues early. Tracking sleep duration and timing can reveal natural rhythms that make scheduling naps and bedtime easier for the whole family.
How much sleep does my baby need?
- Newborn (0-3 months): 14-17 hours per day, spread across many short sleep periods with 30-45 minute wake windows.
- Infant (3-12 months): 12-15 hours per day, including 2-4 naps with wake windows of 1.5-3.5 hours.
- Toddler (1-3 years): 11-14 hours per day, typically with 0-2 naps and wake windows of 3-6 hours.
Understanding wake windows
Wake windows are the time your baby is awake between sleep sessions. Getting these right is key to avoiding overtiredness. This tracker monitors wake windows in real time and alerts you when your baby may be approaching their limit based on WHO and AAP guidelines for their age.
Tips for better baby sleep
Establish a consistent bedtime routine, keep the room dark and cool, and watch for sleepy cues like yawning or eye rubbing. Use this tracker to identify your baby's natural sleep windows and build a schedule around them.
Frequently Asked Questions
How much sleep does my baby need?▾
Newborns (0-3 months) need 14-17 hours, infants (4-11 months) need 12-15 hours, and toddlers (1-3 years) need 11-14 hours per day. This includes both naps and nighttime sleep.
What are wake windows?▾
Wake windows are the periods of time your baby is awake between sleep sessions. Appropriate wake windows vary by age: 30-45 minutes for newborns, up to 4-6 hours for toddlers. Keeping wake windows in the right range helps prevent overtiredness.
How is the sleep score calculated?▾
The sleep score (0-100) evaluates three factors: regularity (how close nap count is to age-expected), total sleep duration (compared to WHO/AAP guidelines), and wake window appropriateness.
Is my data private?▾
Yes. All sleep data is stored locally on your device using your browser's localStorage. Nothing is sent to any server.