Changes in sleep are common near the end of life, and yes, an unusual inability to sleep or rest can be a sign that someone is in their final days. Most people near death sleep more, not less. But a significant minority experience the opposite: a period of agitation, restlessness, and wakefulness that can seem alarming to caregivers. Both patterns are recognized end-of-life changes, and understanding which one you’re seeing can help you respond.
The Typical Pattern: More Sleep, Not Less
As death approaches, the most common change is a dramatic increase in sleep. A person may sleep for most of the day and night, become difficult to rouse, and eventually slip into a state of deep unconsciousness where they can no longer open their eyes, communicate, or respond to touch. Talking and physical activity decrease significantly, and the person may resist being moved at all. This gradual fading of consciousness is one of the most widely recognized signs that someone is in their last days or hours.
So when a dying person stops sleeping, or becomes notably more wakeful and agitated after a period of increasing drowsiness, it stands out. It often feels wrong to caregivers, and for good reason: it runs counter to what most people expect.
Terminal Restlessness: When Dying Looks Like Wakefulness
The clinical term for this is terminal restlessness (sometimes called terminal agitation or terminal delirium). It typically appears in the last five to seven days before death, and in some cases within the final hours. Rather than drifting peacefully into sleep, the person becomes agitated, confused, and unable to settle.
The signs are distinct from ordinary insomnia. A person experiencing terminal restlessness may:
- Move constantly, tossing and turning, twitching, throwing legs over the side of the bed, or trying to get up
- Pull at clothing, bedsheets, or medical equipment
- Speak in confused or nonsensical ways, or mumble and moan
- Hallucinate, reporting things that aren’t there or staring into the distance
- Show personality changes, including uncharacteristic anger, cursing, combativeness, or paranoia
- Refuse care from nurses or family members
One hospice clinician described it as a paradoxical shift: a person goes from being very withdrawn and sleeping most of the time to suddenly entering a state of active confusion, picking at things, reaching into the air, and in extreme cases even trying to hit people or hurt themselves. This can be deeply distressing to watch, especially when it emerges suddenly in someone who had been quiet and still.
How Common Is It?
Delirium in palliative care settings affects roughly 28 to 42 percent of patients at the time of admission to hospice. As death gets closer, that number rises sharply. Studies report that up to 88 percent of people experience some form of delirium before death, though not all of it involves the dramatic agitation described above. Some delirium is quiet and looks more like deep confusion or disorientation. The severe, restless form that keeps a person from sleeping is less common, but it is far from rare.
What Causes Wakefulness Near Death
Several things can drive this sleeplessness, and they often overlap.
As the body’s organs begin to fail, chemical imbalances build up in the blood. Kidney failure, liver failure, and other metabolic breakdowns mean the brain is no longer getting what it needs to function normally. This kind of brain dysfunction can cause both fatigue and insomnia, sometimes swinging between the two. It can also produce confusion, hallucinations, and agitation, all hallmarks of the restlessness caregivers see.
Pain is another driver. A person who can no longer communicate well may be in significant discomfort without being able to say so, and that unmanaged pain keeps the body from settling into rest.
Medications themselves can contribute. Steroids taken later in the day are known to disrupt nighttime sleep. Certain opioid side effects can cause agitation rather than sedation. Diuretics taken after midday force waking for urination. Even the withdrawal from sedative medications can trigger wakefulness. In palliative care, the very drugs meant to ease the dying process sometimes create new sleep problems.
How Terminal Restlessness Differs From Insomnia
If you’re caring for someone with a serious illness and wondering whether their sleeplessness is a sign of dying or just a bad stretch of insomnia, context matters enormously. Ordinary insomnia involves a person who is mentally present, aware of their surroundings, and frustrated by their inability to sleep. They may toss and turn, but they can still hold a conversation and recognize where they are.
Terminal restlessness looks fundamentally different. The person is typically confused, not fully aware of their surroundings, and unable to communicate clearly. Their movements are not purposeful in the way that a restless but healthy person’s are. Instead, you see repetitive, almost involuntary behaviors: plucking at sheets, reaching into empty air, grimacing, moaning. There is often a sudden onset, a sharp change from the person’s baseline in the previous days.
The presence of other end-of-life signs alongside the sleeplessness is also telling. If the person has already been eating and drinking less, losing the ability to swallow, showing changes in breathing patterns, or becoming increasingly unresponsive during waking hours, then a sudden period of agitated wakefulness fits the trajectory of dying rather than a standalone sleep problem.
What Caregivers Can Do
Terminal restlessness is not something you can fix, but you can make it less distressing for both the person and yourself. Keeping the environment calm and quiet helps. Dim lighting, a familiar voice speaking gently, and minimizing the number of people in the room can reduce stimulation that worsens agitation. Soft music or a hand to hold sometimes settles a person when words no longer reach them.
It helps to know that this restlessness is not suffering in the way it appears. The confusion that accompanies terminal delirium means the person is often not experiencing the situation the way an observer perceives it. Their thrashing and vocalizing can look like distress, but the underlying awareness needed to feel that distress in a conscious way is frequently already diminished.
Hospice and palliative care teams can adjust medications to ease agitation when it becomes severe. If your loved one is on hospice and you notice a sudden change from sleepiness to agitation, letting the care team know promptly gives them the best chance to help. Reviewing current medications for anything that might be contributing to wakefulness is one of the first things they will do.
For caregivers, the hardest part is often the emotional weight of witnessing it. Understanding that this is a recognized, physiological part of the dying process, not a sign that something has gone terribly wrong with their care, can provide some measure of reassurance during an extraordinarily difficult time.