At night

Also found in: Idioms.
At night   
References in classic literature ?
The first sound in the morning was her voice as she went about the house singing like a lark, and the last sound at night was the same cheery sound, for the girls never grew too old for that familiar lullaby.
The plan the writer had for the raising of his bed was forgotten and later the carpenter did it in his own way and the writer, who was past sixty, had to help himself with a chair when he went to bed at night.
Light at night is now clearly a risk factor for breast cancer" Blask says.
The squadron rosters included a core of veteran carrier pilots who had little or no night carrier experience, a few carrier pilots who had fought at night in WW II and a few pilots just out of the training command.
Melatonin is a hormone produced within the brain that helps keep us awake during the day and asleep at night.
Recent studies have substantiated this report, concluding that while there is significant individual variability in sleep patterns among residents, sleep fragmentation is generally severe, with many residents awake for long periods at night and asleep for substantial parts of the day.
Middle-class city dwellers, like Tommie's parents, already ensured that their own children stayed indoors at night and went to bed early.
These viewers will give Police Chief Croughwell and his police officers a high-tech advantage in catching criminals at night, when many crimes are committed.
People are probably designed to sleep 6 or 7 hours at night and take a short afternoon nap, he suggests.
Our follow-up study found that they blunt the normal drop in body temperature at night and suppress the release of melatonin, both of which normally promote sleep," says Murphy.
He was maybe a mile away, but, as Dillow observed, no one measures distances accurately at night, especially through brush, over logs and across hummocks.