A man initiated sex with his wife almost every night for years. He had no memory of it — none, the following morning. When he eventually complained that they weren't having enough sex, his wife reminded him of their nightly encounters. He assumed she was lying to make excuses. She had been having sex with him, every night, with a partner who wasn't fully awake and would never remember.
This is a real case. It is not unusual.
Sexsomnia is a recognized sleep disorder — a parasomnia, in the same category as sleepwalking — in which a person engages in sexual behavior while fully asleep. Masturbation, sexual vocalizations, touching a partner, or initiating intercourse. The person has no awareness during the episode and typically no memory of it the next morning. Psychology Today's August 2026 examination of the condition, by clinical psychologist Dr. David Ley, documents what happens when it goes unaddressed in long-term relationships — and why it so frequently does.
The Memory Gap That Creates Mistrust
The central challenge of sexsomnia in relationships is that only one person has a memory of what happened. For the observing partner, the events are real, frequent, and confusing. For the person with sexsomnia, they may feel genuinely impossible to believe.
In one case, a woman made sexual sounds and appeared to orgasm while asleep. When her husband told her, she initially thought he was making it up. Even when he woke her during or immediately after episodes, she still had no recollection. The experience was vivid and real for him. For her, it was as if nothing had occurred.
This gap creates a specific kind of relational damage. The person being told they did something they don't remember may interpret the claim as an accusation, a manipulation, or evidence that their partner is misperceiving or misrepresenting reality. The partner witnessing the episodes may begin to feel gaslighted even when no dishonesty is involved.
In the case of the man who initiated sex nightly, the absence of memory eventually produced a marital crisis about frequency and desire — built entirely on an event he had no access to.
The Jealousy Problem — Names in the Night
Some sexsomnia cases involve sexual vocalizations — sounds, words, names. One husband whose wife talked during sleep sometimes heard her say the names of other people. Never his own.
Early in their marriage, he assumed this meant she secretly wanted someone else. He carried sexual shame and insecurity into every interaction with her, interpreting her nighttime behavior as evidence of his inadequacy. In reality, a sleeping brain can produce sounds, names, and behaviors without expressing any conscious preference or intention. A name spoken during a parasomnia is not a confession.
Sexsomnia can also produce behaviors that differ from a person's waking patterns entirely — one published case documented a man who masturbated during sleep using his non-dominant hand, the opposite of his waking behavior. The sleeping brain isn't expressing desire in any recognizable way. It is generating behavior from a different and disconnected state of consciousness.
What Goes Wrong When It Isn't Discussed
The most consistent finding in the clinical literature on sexsomnia: it goes undiscussed for far too long. In one case documented in the research, a couple lived with the behavior for 13 years before addressing it openly — finally doing so only in a sleep clinic setting.
The reasons for silence are understandable. Partners may fear embarrassing the person with sexsomnia, starting an accusatory argument, or being disbelieved. The person with sexsomnia may feel guilty or frightened when told what they've done while asleep. One husband became selective about what he reported to his wife because he didn't want to intensify her shame.
The silence allows confusion and resentment to accumulate. In more serious cases, it delays recognition of an underlying sleep disorder that may be treatable. And the practical implications can extend beyond emotional distress: unintended pregnancies can result from sexsomnia episodes, and some relationships have ended — including marriages — over the confusion and mistrust it generates without being named.
What Helps
Episodes of sexsomnia can increase with stress, sleep deprivation, alcohol use, and irregular sleep schedules. In one documented case, treating sleep apnea — an entirely separate sleep disorder — stopped the sexsomnia episodes entirely. Improving sleep quality and regularity reduces frequency in most cases.
For couples navigating sexsomnia, clinical guidance emphasizes two priorities. The first is a safety plan: an explicit agreement about what happens during an episode, including whether sexual contact should stop unless both people are clearly awake and communicating. The second is treatment evaluation — a qualified clinician can assess the underlying sleep architecture and recommend approaches ranging from sleep hygiene improvements to medication.
The condition does not require the relationship to be defined by it. Accurate information, Dr. Ley writes, "and honest communication can replace some of the fear and secrecy surrounding it." What it cannot survive is the 13-year silence.
