Is it safe to sleep after a head injury?

A tired person does not need to be kept awake if serious warning signs have been excluded, but a responsible adult should stay with them and follow discharge advice.

How long does concussion last?

Many people improve within about 2 weeks. Persistent symptoms, especially in children, need medical review.

When can I return to sport?

Do not return to contact sport until fully recovered and follow a gradual return plan; seek professional advice if symptoms recur.

Head injury and concussion: Symptoms & Treatment

What are head injury and concussion?

Concussion is a temporary brain injury after a blow or jolt to the head. Headache, dizziness, nausea, tiredness, poor concentration and memory problems can follow. Worsening drowsiness, repeated vomiting, a seizure, weakness, unusual behaviour or loss of consciousness needs emergency assessment.

Symptoms of concussion

Common symptoms include headache, feeling dazed, dizziness, nausea, sensitivity to light or noise, irritability, slowed thinking and difficulty remembering events.

Looking after a minor injury

Rest, use a wrapped cold pack for short periods and take paracetamol if suitable. An adult should observe the injured person for 24 hours. Follow any hospital discharge instructions.

Recovery

Return gradually to work, study and exercise. Stop and step back if symptoms worsen. Avoid driving until concentration and reaction speed feel normal.

Common questions about head injury and concussion

Is it safe to sleep after a head injury?: A tired person does not need to be kept awake if serious warning signs have been excluded, but a responsible adult should stay with them and follow discharge advice.
How long does concussion last?: Many people improve within about 2 weeks. Persistent symptoms, especially in children, need medical review.
When can I return to sport?: Do not return to contact sport until fully recovered and follow a gradual return plan; seek professional advice if symptoms recur.

Sources

NHS — Head injury and concussion

How we reviewed this page

Medically reviewed by the HealthAnswers UK doctor review panel

First published: 1 August 2026
Medically reviewed: 1 August 2026
Next review due: 1 August 2029 or sooner if NHS or NICE guidance changes

Written by HealthAnswers editorial team. Published by HealthAnswers (Elite Digital AI Solutions Ltd). How we review content · Report a problem with this page