Go to sleep; also, cease paying attention. For example, As soon as the lights were dimmed he fell asleep, or His lectures are so dull that I fall asleep. The literal usage, which uses the verb fall in the sense of “succumb,” dates from about 1300; the figurative is several centuries newer. Also see asleep at the switch.
Words nearby fall asleep
How to use fall asleep in a sentence
These tips will help you fall asleep faster and wake up refreshed.13 Tips for the Best Nap Ever|DailyBurn|August 12, 2014|DAILY BEAST
But they were known for drugging girls and putting cold syrup in big coolers of alcohol so that girls would fall asleep.From Frat Boys to Criminals: Two College Elites' Scarface Dreams|Olivia Nuzzi|April 27, 2014|DAILY BEAST
Step 11: Return to your living room, and fall asleep as a low-budget cop drama plays on a smallish computer monitor.How to Celebrate 4/20 Without Actually Smoking Weed|Kelly Williams Brown|April 20, 2014|DAILY BEAST
Heroin blocks this automation so that when you fall asleep, you stop breathing.Heroin: America’s Silent Assassin|Dr. Anand Veeravagu, MD, Robert M. Lober, MD, PhD|February 3, 2014|DAILY BEAST
He then pretended to fall asleep during a clip of Lagerfeld explaining how he lost the weight.Anderson Cooper Slams Star Jones, Karl Lagerfeld & More (Video)|Mike Munoz, Melissa Leon|October 5, 2012|DAILY BEAST
If you don't fall asleep under the wheels of a truck you'll be mighty lucky.
Do not respectable gentlemen fall asleep in their arm-chairs?Little Travels and Roadside Sketches|William Makepeace Thackeray
I stretch myself out on the wooden bench, running along the wall of the cell, and at once fall asleep.Prison Memoirs of an Anarchist|Alexander Berkman
Gale 37 brought her supper and then left her alone to fall asleep early and get as much rest as she could.The Adventure Girls at K Bar O|Clair Blank
Then everything is confused: I seemed to fall asleep—a long restful sleep, that was broken by my taking a long journey.The Bag of Diamonds|George Manville Fenn