When they clamber into bed after another day of doing things they have the ability to nod off almost immediately. Entering the world of sleep so quickly is easy for them.
It is a skill which through the years seems to dissolve ... it seems to take me about a fortnight.
Which may be right because despite having some unsettled snatches of sleep time, and spending what seems like a fortnight getting to those unsettled zzzzs, I don't feel too fatigued the following day.
And I figure that even if I do at least it'll mean I'll get off to sleep quicker that night.
But no, another fortnight of semi-slumbering and tossing and turning.
Now I'm not keen on the idea of taking something to help me sleep because I kind of figure that it should come naturally...although I am not averse to a cup of one of those oddball teas which are said to encourage relaxation.
You'll have to beer, I mean bare with me here for it requires some imagination to get the gist of the only one I could come up with.
It centred on a cheesemaking lady called Meda and for her services to the cheesemaking industry as a whole she was made a dame.
So of course when she focused on a very popular and common style of cheese called edam it was a case of Dame Meda made edam.
So there I lay, at 2.11am, absolutely delighted with my efforts to the point where I got up and wrote it down ... sleep was a distant memory at that stage.
"Oh," I mumbled, "sleep backwards is peels."
I pondered using the Latin phrase of "omni" for my alternative word wrangling around the appropriate word of "insomnia" and came up with "inns omni ear".
Which is utterly meaningless but things with meaning do tend to drift out the door when one is seeking sleep.
Now wordplay is a very fine thing to do because it keeps the brain rattling along rather nicely, but pursuing this exercise while trying to open the door to Dreamland is not a very good idea.
Because it does not rest the brain, it sparks it.
And the more you spark it the more it stays awake.
It is a dilemma ... for lying in darkness and in peace and quiet is the ideal time to ponder the wonder of words and how they can be wrangled and woven into so many forms.