If you've been falling behind on sleep, this is the weekend to fall back into bed for an extra hour — and take advantage of the transition from daylight saving time to standard time.

Daylight Savings Time, or Summer Time, as it is known in Europe officially ends at 2 a.m. tonight in the United States.   Each country decides when it will end and begin, so it can vary from country to country.

And, yes, as we go OFF Daylight Savings Time, countries in the Southern Hemisphere, such as the provinces in Australia,will, if they have not already, be going ON it as their summer approaches.

So, go ahead, stifle that yarn and turn over for another blissful hour of sleep! 

If you don’t think YAWNING is contagious, see if you YAWN by the time you’re done reading this explanation of YAWNING.
First, let’s dispel a myth. You don’t yawn to take in extra oxygen. “That’s been rejected in lab tests,” says YAWN expert Robert Provine, professor of psychology at the University of Maryland’s Baltimore County campus.
He had test subjects breathe air with extra oxygen. For others, he reduced the oxygen intake by giving them air high in carbon dioxide. Neither caused more or less YAWNING.
(YAWN. YAWN. YAWN.)
Provine says “we YAWN when we’re changing states of activity. Going from sleep to wakefulness, like YAWNING in the morning. Or wakefulness to sleep.” (He says we YAWN more in the morning when we wake up, by the way.)