Baby Sleep Study interactive web app

By: 
David Heeger
Principle Investigator

We’ve created an interactive web app that displays charts for you to see how your infant compares with others in the NYU Baby Sleep Study.

Using it is simple. To access the web app, log into your account on the study's website. Once you log in, in the top left corner click on the link, "View this baby's data in our interactive web app". You can view your child's sleep, feeding, and digestion data. The home page displays the number of sleep, feeding and diaper changes across all participants in the study. Additionally, you can see where caregivers are logging around the world. To navigate between sleep, feeding and diaper changes, use the dashboard navigation on the left, or the menu bar on the top right. The following information may be helpful for navigating and understanding the charts on the web app.

The chart below shows, for study participants, the average number of sleep events logged per day, starting from the first week of life up to 104 weeks (two years old). This chart allows you to see how many sleep events, on average, have been logged for your child compared to the other infants in the study. The x (horizontal)-axis represents age (in weeks) and the y (vertical)-axis represents the average number of sleep events logged per day (increments of 1 event). The solid purple curve is the average number of sleep events logged for all infants in the study. Each dot on the solid line represents each week. The light purple shading surrounding the solid purple curve is the variability, or range, of average sleep events logged across infants in the study. The dashed purple curve shows the average number of sleep events logged per day for your child. The chart below is an example and does not include the dashed lines that will appear after you have entered the Baby Connect kid ID number on the web app.

sleepEventsCursor.png

As you move the cursor along the chart from left to right, a number will appear on the x-axis which indicates the week number. Three boxes will also appear with three numbers: (1) average sleep events logged for all infants in the study (2) the range of average sleep events logged across infants in the study (3) average sleep events logged for your child. If you are using a smartphone or tablet, tap on the chart at each week to display the boxes.

The average number of sleep events logged during the first week is 7 and steadily declines until week 71 (about 18 months). This pattern follows the emergence of a circadian rhythm as babies began to settle into a routine of sleeping throughout the night and taking one to two naps during the day.  After 71 weeks, the average number of sleep events logged remains at, or very close to, two sleep events logged per day.

The chart on the bottom left shows how long an infant is sleeping each time he or she falls asleep as the first year of life progresses. The x-axis is age in months. The y-axis is sleep bout duration in minutes. The solid red curve is nighttime sleep (8 pm to 8 am). The solid blue curve is daytime sleep (8 am to 8 pm). The shading surrounding each curve is the variability, or range, of reported sleep bout durations across infants in the study. The two dashed curves represent your child’s sleep bout duration for the nighttime (red dashed curve) and daytime (blue dashed curve). The large dots on each curve indicate age in months. The chart below is an example and does not include the dashed lines that will appear after you have entered the Baby Connect kid ID number on the web app.

sleepBoutCursor.png


 

As you move your cursor from left to right, a number will appear on the x-axis representing each month. Six boxes will also appear that display: (1) sleep bout duration during the daytime for other infants in the study, (2) the range of sleep bout duration during the daytime across infants in the study, (3) sleep bout duration during the daytime for your child, (4) sleep bout duration during the nighttime for other infants in the study, (5) range of reported sleep bout duration during the nighttime across infants in the study, and (6) sleep bout duration during the nighttime for your child.

If you are using a smartphone or tablet, tap on the chart at each month to display the boxes.

 

 

 

 

 

 

 

The chart on the bottom right shows the total amount of sleep per day, and how it changes with age. The x-axis is again age in months. The y-axis is the total amount of sleep during each 24 hour period in minutes. The solid red curve is nighttime sleep (8 pm to 8 am). The solid blue curve is daytime sleep (8 am to 8 pm). The solid black curve is all sleep (nighttime plus daytime). The dashed lines represent your child’s sleep during the nighttime (dashed red line), the daytime (dashed blue line), and the entire 24 hour period (dashed black line). The large dots on each curve indicate age in months. The chart below is an example and does not include the dashed lines that will appear after you have entered the Baby Connect kid ID number on the web app.

totalSleepCursor.png

 

As you move your cursor from left to right, a number will appear on the x-axis representing each month. Nine boxes will also appear that display: (1) daytime sleep for other infants in the study, (2) range of daytime sleep across infants in the study, (3) daytime sleep for your child, (4) nighttime sleep for other infants in the study, (5) range of nighttime sleep across infants in the study, (6) nighttime sleep for your child, (7) total amount of sleep for other infants in the study, (8) range of total sleep across infants in the study, and (9) total amount of sleep for your child. 

 

 

 

 

 

 

 

Your child’s sleep may or may not fall in range with the rest of the infants in the study. If your child appears to be sleeping a lot less than the group, this does not necessarily imply that something is wrong. It could be that you are not logging all of your infants’ sleep events. Logging every sleep event throughout the day and night will accurately represent your child’s sleeping. Because we are analyzing the data on a weekly basis, it is best for you to log your child’s events consistently for 7 consecutive days starting at midnight on the day of the week that your child was born until midnight on the same day of the following week. You can then take a break, if necessary, before logging consistently for another week. If you are not sure on which day of the week your child was born, you can use this weekday calendar. All you will need is your child's date of birth (month, day, and year). Logging consistently for a week will allow us to carry out more reliable data analyses than if you log sporadically throughout a week’s time. 

We receive the data from Baby Connect on a monthly basis, so the information displayed on the web app will always be one month out of date. If you have registered your child within the past month, check back on the 15th of the following month.

We sincerely appreciate your invaluable contribution to the NYU Baby Sleep Study.