What is a sleep divorce?

Sleep divorce is not a legal separation — it refers to the choice for partners to sleep in different rooms (or different beds) for the sake of better rest. A 2023 survey by the American Academy of Sleep Medicine (AASM) found that approximately 35% of Americans occasionally or consistently sleep in a separate room to accommodate a bed partner.

Does sleeping separately actually improve sleep quality?

Research using objective measures such as EEG shows that sleeping alone tends to produce better sleep efficiency and continuity. In surveys of people who have tried sleep divorce, around 53% report improved sleep quality. That said, co-sleeping does carry emotional benefits — including increased REM sleep — so outcomes vary by individual.

Can sleeping apart hurt a relationship?

Not necessarily. Research consistently shows that poor sleep leads to more conflict and lower relationship satisfaction. Two well-rested partners tend to be less irritable and more supportive of each other. The key is intentionally scheduling connection — touch, conversation — before heading to separate rooms.

Can you fix a snoring problem without sleep divorce?

In many cases, yes. White noise machines, earplugs, anti-snoring pillows, and side-sleeping positions can all help. If your partner snores heavily, an evaluation for sleep apnea is worth pursuing — research shows that partners of CPAP users report better sleep and higher relationship satisfaction.[9]

What should couples with different chronotypes do?

Chronotype — whether you are a morning or evening person — is largely genetic and difficult to change. A study analyzing over 47,000 couples found that partners rarely share the same chronotype. Practical strategies include staggered wake times (the early riser leaves first), dual duvets, and starting your bedtime routine together before parting ways.

Sleep TipsApr 9, 20268 min read

Sleep Divorce: Should Couples Sleep Separately?

Waking up beside your partner sounds romantic. But if snoring, tossing, or mismatched alarm times are fracturing your nights, the reality may look very different. There is a reason the term "sleep divorce" has been gaining serious attention.

TL;DR

A 2023 AASM survey found that 35% of Americans sleep in a separate room occasionally or consistently to accommodate a partner. Objective sleep measurements show co-sleeping can reduce sleep quality — particularly due to snoring, movement, temperature mismatches, and misaligned chronotypes. Sleeping apart can improve individual sleep but requires intentional effort to maintain intimacy. Alternatives such as dual duvets, white noise, and separate wake times can help couples stay in the same bed while sleeping better.

What Is Sleep Divorce?

Sleep divorce has nothing to do with legal separation. It simply means two partners agreeing to sleep in different spaces for the sake of better rest. According to a 2023 survey by the American Academy of Sleep Medicine (AASM) of 2,005 U.S. adults, approximately 35% sleep in a separate room occasionally (20%) or consistently (15%) to accommodate a bed partner.<sup>[1]</sup>

The trend is especially pronounced among younger generations: roughly 43% of millennials report regularly sleeping apart, compared with 33% of Gen X and 22% of baby boomers. By gender, men (45%) are far more likely to move to a separate room than women (25%).

Why Couples Consider Sleeping Apart

Snoring

Snoring is the number one reason by a wide margin. In one UK survey, 71% of couples who sleep separately cited snoring as a primary cause. Sleeping next to a heavy snorer can make you up to three times more likely to have trouble falling or staying asleep. For more on causes and solutions, see our article on sleep apnea and snoring.

Mismatched Chronotypes

Morning larks paired with night owls are more common than people assume. A study of over 47,000 UK Biobank and 23andMe couples found that people rarely choose partners with matching chronotypes.^[2] Couples with mismatched chronotypes report more marital conflict, less sexual intercourse, and lower sleep satisfaction than matched pairs.^[3]

Restless Movement

Restless legs syndrome, periodic limb movement disorder, or simply frequent tossing and turning can fragment a partner's sleep. An actigraphy study of 55 couples found that partner movement accounts for approximately 19% of all nighttime awakenings, with each person receiving an average of about six "wake transmissions" per night.^[4]

Temperature Preferences

The ideal sleep temperature is around 65–68°F (18–20°C), but individual preferences vary significantly. When one partner runs hot and the other cold, battles over blankets and thermostats can disrupt both people's sleep. Learn more about the science of optimal sleep temperature.

The Science: Does Sleeping Apart Actually Improve Sleep?

The answer depends on how you measure sleep. Subjective reports (surveys) and objective measurements (EEG, actigraphy) tell different stories.

In objective sleep research, solo sleeping tends to show better sleep efficiency and continuity. However, polysomnography (EEG)-based research finds that co-sleeping couples experience approximately 10% more REM sleep and greater sleep-stage synchronization.^[5] Since REM sleep plays a critical role in emotional regulation and memory consolidation, the benefits of co-sleeping cannot simply be dismissed.

From a practical standpoint, approximately 53% of people who have tried a sleep divorce report improved sleep quality. Sleep researchers broadly acknowledge sleep divorce as a reasonable choice, provided it benefits both partners.

"Well-rested couples are kinder, more patient, and better at resolving conflict."

Sleep quality shapes relationship quality.

Relationship Concerns: What to Watch For

The concern most couples raise about sleeping separately is emotional distance. This is a valid worry — bedtime is often when partners decompress together and maintain intimacy. But research shows that sleep deprivation itself is the bigger threat to relationship health.

Sleep deprivation increases irritability, reduces empathy, and impairs conflict resolution.^[6] An experimental study of 30 couples found that sleep-deprived partners showed higher cortisol levels during conflict and less positive affect compared to rested controls.^[7] Two partners who each sleep well — and spend intentional time together when they are rested — may have a healthier relationship than two people sharing a bed but sleeping poorly.

Communication is critical. Sleep divorce should be a mutual decision, not a unilateral one. Harvard Medical School recommends checking in regularly to confirm the arrangement is working for both partners.

Alternatives to Full Separation

Before moving to separate rooms entirely, there are several practical strategies worth trying.

Dual Duvets (Scandinavian Method)

Using separate duvets on the same bed eliminates temperature conflicts and the tug-of-war caused by a restless partner. This practice has been common in Scandinavia for decades and is now gaining traction elsewhere.

White Noise and Earplugs

A small study of snoring couples found that wearing earplugs significantly improved perceived snoring severity and sleep-related quality of life.^[8] White noise machines are effective at masking snoring sounds. For more strategies on improving depth of sleep, see our guide on how to sleep deeper.

Staggered Wake Times

Create a protocol where the early riser leaves the bedroom quietly without disturbing the other. Similarly, the night owl can wait until the early sleeper is settled before coming to bed. This alone can significantly reduce the number of nighttime awakenings for both partners.

Motion-Isolating Mattress or Split Bed

Memory foam or air-chamber mattresses that minimize motion transfer can significantly dampen the impact of a restless partner. If you and your partner prefer different firmness levels, a split king (two separate twin XL mattresses in a king frame) is worth considering.

Improving Sleep Hygiene Together

Building a consistent bedtime routine together can help narrow chronotype gaps and reduce nighttime restlessness. For a comprehensive checklist, see our sleep hygiene checklist.

Making the Decision Together

Before deciding whether a sleep divorce is right for you, consider working through these questions together.

1. Identify the root cause precisely.

Knowing whether snoring, chronotype, movement, or temperature is the primary driver helps you find the right solution. Without data, you may misattribute the problem.

2. Plan for intimacy in advance.

Intentionally schedule touch, conversation, and physical intimacy. "Scheduled" may not sound romantic, but planned connection between two well-rested people is often higher quality than incidental contact when both are exhausted.

3. Start with a trial period.

Try sleeping apart for 2–4 weeks and evaluate how both of you feel. Approaching it as a permanent decision adds unnecessary pressure. Measure both sleep quality and relationship satisfaction.

4. Reassess regularly.

Sleep divorce is not a permanent state. If one partner gets treated for sleep apnea, stress decreases, or schedules shift, returning to a shared bed may become viable. Check in periodically to see whether the arrangement is still working for both of you.

If you want to address your own sleep quality more broadly, understanding why you wake at night can help. See our articles on why you wake up at 3 AM and the best sleeping positions for quality rest.

References

[1] American Academy of Sleep Medicine. (2023). Sleep Prioritization Survey 2023: Sleep Divorce. AASM. https://aasm.org/over-a-third-americans-opt-sleep-divorce/
[2] Jones, S. E., et al. (2023). Correlations in sleeping patterns and circadian preference between spouses. Communications Biology, 6, 1–9. https://doi.org/10.1038/s42003-023-05521-7
[3] Fischer, D., et al. (2022). Sleep and sexual satisfaction in couples with matched and mismatched chronotypes: A dyadic cross-sectional study. PLOS ONE. https://pubmed.ncbi.nlm.nih.gov/35762311/
[4] Richter, K., et al. (2020). Vulnerability and resistance to sleep disruption by a partner: A study of bed-sharing couples. Sleep Health, 6(3), 344–350. https://pubmed.ncbi.nlm.nih.gov/32331861/
[5] Drews, H. J., et al. (2020). Bed-sharing in couples is associated with increased and stabilized REM sleep and sleep-stage synchronization. Frontiers in Psychiatry, 11, 583. https://doi.org/10.3389/fpsyt.2020.00583
[6] Keller, P. S., et al. (2022). Sleepless nights lead to more conflict, less empathy in relationships. American Academy of Sleep Medicine. https://aasm.org/sleepless-nights-lead-to-more-conflict-less-empathy-in-relationships/
[7] Hisler, G., & Krizan, Z. (2021). Quarreling after a sleepless night: Preliminary evidence of the impact of sleep deprivation on interpersonal conflict. Affective Science, 2(4), 457–467. https://doi.org/10.1007/s42761-021-00076-4
[8] Beninati, W., et al. (1999). The effect of snoring and obstructive sleep apnea on the sleep quality of bed partners. Mayo Clinic Proceedings, 74(10), 955–958. https://pubmed.ncbi.nlm.nih.gov/10918859/
[9] Doherty, L. S., et al. (2003). The effect of CPAP on the sleep quality and partners of patients with obstructive sleep apnea. Respiratory Medicine. See also: PMC5337594
[10] Troxel, W. M., et al. (2015). Sleep concordance in couples is associated with relationship characteristics. Sleep, 38(6), 933–939. https://pmc.ncbi.nlm.nih.gov/articles/PMC4434560/

Written by

piliq Sleep Science Team

Evidence-based content grounded in sleep research and clinical data.

piliq tracks your nightly sleep patterns so you can see — with real data — exactly how much your partner's movements or snoring are affecting your sleep.

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