Noun
dead of night
(idiomatic) Middle of the night.
Synonyms: deep of night; see also Thesaurus:midnight
But it is good to be several floors up in the dead of night wondering whether you are any good or not and the only decision you can make is that you did it. Frank O'Hara
I'm a night owl, and luckily my profession supports that. The best ideas come to me in the dead of night. Josh Fox
Make me a willow cabin at your gate, And call upon my soul within the house; Write loyal cantons of contemned love And sing them loud even in the dead of night. William Shakespeare
Women run the small country called Home, millions of us do it in our spare time, and no one who doesn't run that small country really knows what it feels like in the dead of night when task lists jitter like tickertape through your seething brain. Allison Pearson
As the two swim out in the dead of night, Anton is surprised at Vincent's stamina, and Vincent reveals that his trick to winning was not saving energy for the swim back. Source: Internet
According to the police, the suspect has been hiding and and returning home in the dead of night since the incident. Source: Internet