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Why Your Child Is Overtired and Wired

second windHave you ever had this happen?

You’re tired at your regular bedtime but still have things to do, so you power through the exhaustion. Two hours later you head upstairs to bed. But once you get under the covers you can’t fall sleep! You toss and turn for an hour before finally conking out – and sleep fitfully for the rest of the night.

Sound familiar?

Now, take a look at your child. Is bedtime a struggle? Do they take forever to fall asleep? Are they clearly tired by the end of the day but get a burst of energy after bath that makes you doubt whether or not you should even try tucking them in?

If so, they may have trouble falling asleep for the same reason you do when you stay up too late. They may actually be overtired and experiencing the dreaded “second wind.”

Here’s why it happens:

We all have an internal clock (our circadian rhythm) that tells us when to be awake and when to be asleep. It’s pretty rigid. We’re wired to wake up and go to sleep at about the same time every night.

When it’s time to sleep, our body produces melatonin, the hormone that makes us feel drowsy.

If we’re awake when we’re supposed to be asleep – in other words if we push past our optimal ” window” for sleep – our brain says “Hmm! I’m supposed to be sleeping right now, but I’m not. I guess I’d better give myself something to keep me going!” When that happens, our brain shuts off the melatonin and turns on stress hormones like cortisol, which act like a shot of adrenaline. We become  much more alert, our heart rates increases, our blood pressure rises –  we get a “second wind.”

Once that second wind kicks in it can be almost impossible to fall asleep no matter how hard we try. We’re officially in the overtired and wired zone. Even after we finally do fall asleep,  those stress hormones can continue to impact our sleep all night long by causing additional wake ups, often in the early morning – a particularly difficult time to fall back to sleep.

So how can you make sure that your child doesn’t become overtired and wired?

First, make sure that your child is getting enough sleep in general. The following chart reflects the average amount of sleep most children need by age. Your child may not follow the chart exactly, but most children don’t veer from the average requirement by more than about one hour. If you’re confused about what bedtime best suits your child, start with their natural wake up time and count backwards the number of hours of sleep they need. That’s the time that they should be asleep each night.

Age Total Sleep Night Sleep Number
Naps
1 week wide variation wide variation on demand
1 month wide variation wide variation on demand
4 months 15 hours 11 hours 4 to 8
6 months 14-1/4 hours 11 hours 2 to 3
9 months 14 hours 11-1/2 hours 2
12 months 13-3/4 hours 11-1/2 hours 2
18 months 13-1/2 hours 11-1/2 hours 1
2 years 13 hours 11-1/2 hours 1
3 years 12 hours 11 hours 1
4 years 11-1/2 hours    
5 years 11 hours    
6 years 10-3/4 hours    
9 years 10 hours    
12 years 9-1/4 hours    
15 years 8-3/4 hours    
18 years 8-1/4 hours    

Next, If your child still needs to nap, be sure that they’re restorative and timed correctly. My article Naps By Age can help you to determine if your child’s daytime sleep need tweaking. This can definitely have an impact on their nights.

Finally, observe your child’s behavior. Pay attention to those early sleepy signs. Get the bedtime routine in motion before you miss the window and head into overtired territory, which so often looks like not being tired at all. Following your child’s cues is by far the best way to assure that they’re going to get the right amount of sleep at the right time of day and night.

Sweet Dreams,

Alison Bevan – Sleepytime Coach

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