The Economics of Sleep
The Sleep Debt
Written by Lamis Benjelloun
Before I decided to change careers and become a sleep consultant, I spent the better part of my earlier life working in financial services. So it was only natural that when I came across the concept of the sleep debt, something clicked and things just started to make sense.
For the purpose of this exercise, I invite you to think about your child’s sleep as if you were an economist managing a bank account. When they are born, their account is small as they are only able to deposit and withdraw in small amounts. Month after month, as they grow, that account gets bigger. Every time they sleep, they are depositing sleep units in the account but every hour or minute they spend awake, they are using units or withdrawing them from the account.
In this analogy, each child has a finite or maximum number of awake units that is a direct result of the number of units they have put in, or the amount of sleep that they have had in the last 24 hours. Once they have consumed all the units in their account, they start borrowing time. So for every bit of time that they are awake when they should be sleeping, they are starting to build a sleep debt. That debt grows as the gap between how much they have slept and how much time they have spent awake widens.
So how can you tell if your child is accumulating a sleep debt?
Basically, if two or more of these statements are true, your child has likely built his or herself a sleep debt.
- My child wakes up multiple times at night
- My child takes short naps (less than 1 hour)
- My child does not take enough naps
- My child regularly wakes up before 6 am
- My child resists or refuses to sleep
- My child often experiences mood swings, especially towards the end of the day
- My child becomes very active at the end of the day and rarely looks sleepy at bedtime
How do you fix the sleep debt?
Ultimately this sleep debt is the root of all your sleep problems but that’s exactly what makes it so easy to fix. We know that if you add sleep units in your child’s account, they’ll have more units at their disposal to use. So let’s offer them more sleep opportunities, lets make them sleep rich! The easiest spot to do that is at bedtime. Get them to bed early, it will allow them to benefit from that oh-so-juicy restorative deep sleep that happens prior to midnight (we’ll talk about this in an upcoming blog). And let them nap. If you haven’t had a chance to hear me insist about the importance of naps, read The Truth About Naps for all the possible scenarios.
Did you like this post? Please forward it to a mama who needs some sleep!


