You are older, you don't have one child you have more than one. They are growing. Causing you worry. Fighting over dumb stuff. Making messes. Being noisy. Asking for a snack for the third time in an hour. You have errands to run, a week to plan, and soon your list is filling your head and sleep is being pushed further and further away.
I used to say I had insomnia. I don't anymore. True insomnia is defined as waking every 1 to 2 hours and then falling back to sleep. Nothing woke you, you just simply wake up. And just like that you fall back asleep. It's not good sleep. You need straight sleep. Lying awake thinking about things night after night is not insomnia. It is anxiety, depression, excitement...etc.*
What do you do when you find you can not sleep? Do you count sheep? Do you read? Do you go on your Smartphone? TV? PC? Do you eat? Drink some milk? Write? Fold laundry?(I did this once!)