"remain overnight" is correct and usable in written English.
You can use this phrase to indicate that someone or something will stay for the night. For example, "I'm going to remain overnight at my aunt's house."
He was to remain overnight as a precaution.
Fryar injured his neck and shoulder, and was to remain overnight in a Philadelphia hospital.
Mr. Clinton will not remain overnight but will fly from Washington and return that evening.
Barring any complications, the need for the patient to remain overnight in the hospital is obviated.
The Halifax harbor master, Randy Sherman, said some stranded passengers would remain overnight aboard other ships in the harbor.
Chesebrough believed they were burglars planning to remain overnight; since he slept alone on the third floor, and the staff and other family members slept above, the intruders would have had "the run of the place," he said.
Tests revealed the clot, so Rivera remained overnight in the hospital.
A spokesman for Blackburn Hospital, where he remained overnight, said: "Mr Bender is comfortable and waiting to see the medic for assessment".
He was carted off the field, regained consciousness shortly afterward and was taken to a hospital, where he remained overnight for tests.
In statements released on Monday morning, the Commerce Department said that Mr. Bryson had "suffered a seizure" and remained overnight at the hospital for examination.
Impatient to leave the church where Thomas insists on remaining overnight with their mother's coffin, Sheila, who is mentally and physically disabled and confined to a wheelchair, leaves the premises and has a series of misadventures after her vehicle gets stuck in a rut.
