Does the Scandinavian Sleep Method Improve Sleep?

The Scandinavian Sleep Method is a sleeping arrangement where two partners share the same bed but use separate duvets.

Typically, this means:

• one shared bed
• one duvet for each person
• individual control over warmth and coverage
• no fighting over the duvet during the night

It is commonly associated with Nordic and Scandinavian homes and hotels, where individual duvets on a shared bed are familiar.

The method has recently attracted attention outside Scandinavia because it offers an interesting middle ground between traditional bed-sharing and what has become known as a “sleep divorce”, where couples sleep in different beds or rooms.

With the Scandinavian approach, couples can still sleep next to each other while having more control over their individual sleep environment.

Why Can Sharing One Duvet Disturb Sleep?

One duvet has to accommodate two people who may have completely different sleeping habits.

One person may turn frequently.

The other may barely move.

One may like to wrap themselves tightly in the duvet.

The other may prefer a light covering.

And then there is the classic problem: duvet stealing.

Common disturbances include:

• pulling the duvet away from your partner
• tossing and turning
• different sleeping positions
• one person getting too hot
• one person getting too cold
• night sweats
• different duvet-weight preferences
• different waking times

These disturbances may cause brief awakenings during the night.

We do not necessarily remember every awakening, but repeated sleep disruption can leave us feeling that our sleep was light or unrefreshing.

Interestingly, research into bed-sharing shows that the picture is not completely straightforward.

A 2021 review found that people may feel that they sleep better with their partner, even when objective measurements sometimes show more disturbance.

That tells us something important:

Physical sleep disruption and emotional comfort can exist at the same time.

Separate duvets may reduce one particular type of disruption — movement and pulling transmitted through the covers — without taking away the closeness of sharing a bed.

Read the 2021 review on PubMed

Could Temperature Be the Biggest Benefit?

This may actually be one of the most interesting parts of the Scandinavian Sleep Method.

Two people sharing a bedroom do not necessarily have the same temperature needs.

One person may sleep comfortably under a warm duvet while their partner repeatedly pushes the covers away.

One bed can contain two different sleep microclimates

The small environment between your body, sleepwear, sheets and duvet is sometimes referred to as your sleep microclimate.

Even if the bedroom temperature is exactly the same for both people, each sleeper may experience that environment very differently.

One person might want:

• a higher-tog duvet
• more coverage
• warmer sleepwear
• their duvet tucked around them

The other might prefer:

• a lighter duvet
• more airflow
• their feet uncovered
• lighter sleepwear

When you share one duvet, somebody often has to compromise.

Separate duvets allow both sleepers to control their own level of insulation.

This matters because sleep and body temperature are closely connected.

As we approach sleep, changes in the way our body releases heat are part of the normal biological process associated with falling asleep.

Research into thermal environments has found that excessive heat can increase wakefulness and disturb sleep.

That does not mean there is one perfect bedroom temperature or duvet for everyone.

Age, hormones, clothing, bedding, season, health and personal preference all influence thermal comfort.

But it does suggest an interesting possibility:

Perhaps one of the biggest Scandinavian Sleep Method benefits is simply giving each person control over their own temperature.

The science supports thermal comfort as an important part of sleep.

What it does not yet prove is that two duvets automatically improve sleep for every couple.

Can Your Partner's Movement Disturb Your Sleep?

Yes, although the effect differs considerably between couples.

An actigraphy study by Pankhurst and Horne examined how bed partners' movements were related during sleep.

People sharing a bed moved more than when sleeping alone, and some movements between partners occurred within the same short time periods.

The research could not prove that one partner's movement directly caused the other person's movement, but it demonstrated that the sleeping behaviour of couples can be interconnected.

Read the research discussion on PubMed Central

A later sleep-laboratory study involving young healthy couples also produced an interesting result.

When couples slept together, researchers observed greater sleep-stage synchronisation and more stable REM sleep, but also more limb movement.

Again, shared sleep appears to involve both potential benefits and potential disturbance.

Importantly, the couples in that study were already using separate duvets, so the study cannot tell us whether the duvets themselves caused any improvement.

Read the study in Frontiers in Psychiatry

Separate duvets should reduce cover-related movement.

However, they will not stop:

• movement travelling through the mattress
• snoring
• obstructive sleep apnoea
• restless legs
• alarms
• light
• different sleeping schedules
• chronic insomnia

That distinction is important.

What Does the Science Actually Say?

There appear to be few well-designed controlled studies directly comparing:

one shared duvet versus two separate duvets

while keeping the bed, mattress, room and sleeping partners the same.

Most of the scientific case for the Scandinavian Sleep Method therefore comes from related areas of research.

What we know

• Bed partners can influence each other's movement and sleep.
• Heat and humidity can affect sleep quality.
• Bedding contributes to the thermal environment around the body.
• People can value the emotional comfort of sharing a bed even when some physical disturbance occurs.

What is plausible

Separate duvets may:

• reduce cover stealing
• reduce duvet-related movement
• allow different duvet weights
• give each sleeper greater control over warmth
• reduce disagreements over bedding

What remains uncertain

Research has not yet established:

• how much separate duvets improve sleep on average
• which couples benefit most
• whether objective sleep measurements significantly improve
• how long any improvement lasts

That means the Scandinavian Sleep Method is best viewed as a low-risk personal experiment, not a scientifically proven treatment.

One Duvet, Two Duvets or Separate Beds?

There are three common ways couples can approach shared sleep.

One shared duvet

Closeness: High
Temperature control: Limited because both people share the same bedding
Cover disturbance: Highest potential
Movement: Mattress movement and duvet movement may both be felt

Two separate duvets

Closeness: High
Temperature control: Better because each sleeper chooses their own bedding
Cover disturbance: Usually lower
Movement: Mattress movement can still be transmitted

Separate beds

Closeness during sleep: Lower
Temperature control: High
Cover disturbance: None between partners
Movement: Usually much lower

There is no universally “correct” arrangement.

The Scandinavian approach sits somewhere in the middle.

It provides more independence than sharing one duvet without requiring couples to sleep apart.

Who Might Benefit Most?

The Scandinavian Sleep Method is particularly worth trying if:

One person sleeps hot and the other sleeps cold

Each partner can choose a different duvet thickness or tog.

Your partner keeps stealing the duvet

Two duvets remove the nightly tug-of-war.

One person moves frequently

Turning over is less likely to drag the other person's duvet across the bed.

One partner experiences night sweats

Independent bedding can stop one person's hot or clammy sleep environment affecting the other's covers.

Persistent or unexplained night sweats should, however, be discussed with a healthcare professional.

You may also find our guide on why you wake up sweating at night useful.

You prefer different duvet weights

One person can choose lighter bedding while the other prefers something heavier.

You wake at different times

Getting out of bed may be less likely to involve lifting or pulling one large shared duvet.

When Won't Separate Duvets Solve the Problem?

Separate duvets are unlikely to help much if the duvet is not actually causing the disturbance.

Loud snoring or suspected sleep apnoea

Symptoms of obstructive sleep apnoea can include loud snoring, breathing that stops and starts, gasping during sleep and significant daytime tiredness.

A second duvet cannot treat an obstructed airway.

If sleep apnoea is suspected, NHS advice is to speak to a GP.

Read NHS guidance on sleep apnoea

Chronic insomnia

Separate bedding may improve comfort, but it cannot address all the reasons someone may struggle to fall or stay asleep.

Read NHS guidance on insomnia

Restless legs

Repeated uncomfortable sensations and the urge to move the legs may require medical assessment rather than a bedding change.

Read NHS guidance on restless legs syndrome

Mattress movement

If every turn travels across the mattress, two duvets will not stop it.

The mattress, bed frame or separate sleep surfaces may matter more.

Different schedules

If one person comes to bed hours later, uses alarms or turns lights on early, separate duvets may make little difference.

How to Try the Scandinavian Sleep Method Tonight

You do not need to redesign your bedroom.

Try it as a simple 7–14-night experiment.

1. Give each person their own duvet

Each partner should be able to turn and move without pulling the other's bedding.

2. Choose a practical size

For many UK double and king-size beds, two single duvets can be a sensible starting point.

Larger individual duvets provide more coverage but can also create more bulk.

3. Choose warmth separately

You do not need matching tog ratings.

If one person sleeps hot and the other cold, that is precisely the point.

4. Think about the duvet cover too

The duvet filling is only one part of the sleep environment.

The cover's fabric, weave, weight and ability to handle moisture can also influence how comfortable the bed feels.

5. Keep the bedroom comfortably cool

Do not rely on bedding alone.

Room temperature, mattress protectors, pyjamas and ventilation all contribute to your sleep microclimate.

6. Overlap the duvets slightly

If you want the bed to retain a shared appearance, overlap the two duvets slightly in the centre.

You still have individual covers without creating a physical barrier between you.

7. Give it more than one night

The first night may simply feel unusual.

Try the method consistently for at least a week.

8. Measure something useful

Each morning, ask:

• How many times did I remember waking?
• Was I too hot or too cold?
• Did I lose my duvet?
• Did my partner wake me?
• How refreshed do I feel this morning?

A simple score from 1–10 is enough.

You do not need a sophisticated sleep tracker to learn something useful from the experiment.

Does Your Duvet Cover Material Matter Too?

Yes, but fibre type is only part of the story.

Fabric construction, weave, weight and finishing can all affect how bedding feels.

Cotton

Cotton is familiar, soft and generally breathable.

It absorbs moisture, although heavier or densely woven cotton can feel warmer and may take longer to dry.

Linen

Linen often feels light and airy and has good moisture absorption.

Some people love its relaxed texture, while others find new linen slightly crisp until it softens.

Polyester

Polyester is durable, quick-drying and often affordable.

Its performance varies considerably depending on construction, although some fabrics may feel less breathable.

Viscose derived from bamboo

Viscose derived from bamboo can feel exceptionally smooth and soft while absorbing moisture well.

How it performs still depends on weave, weight, finishing and the quality of the finished textile.

If you are comparing materials for warmer nights, you may also enjoy our guide to bamboo vs silk bedding for summer sleep.

It is important not to assume that any textile treats insomnia, allergies, eczema, menopause symptoms or another medical condition simply because of its fibre name.

Bedding should be considered part of the sleep environment, not a medical treatment.

Creating a Sleep Environment That Works for Both of You

The real idea behind the Scandinavian Sleep Method may be bigger than simply buying a second duvet.

It is about recognising that two people sharing the same bed do not necessarily need the same sleep environment.

One person may need more warmth.

The other may need less.

One likes everything tucked tightly.

The other wants freedom to move.

Good sleep does not always require couples to compromise on every detail.

Sometimes, giving each person slightly more control can make the shared environment work better.

If you are experimenting with individual duvets, the duvet covers are another part of that equation.

Azenue's viscose-derived-from-bamboo bedding collection is designed around softness, breathability and moisture comfort, making it one option for people creating a more comfortable sleep environment.

So, Does the Scandinavian Sleep Method Improve Rest?

For some couples, yes — it very well might.

The most likely benefits are straightforward:

• less fighting over the duvet
• fewer cover-related disturbances
• greater control over temperature
• different duvet weights for different sleepers
• more personal space without sleeping apart

The evidence is not strong enough to say that two duvets will objectively improve sleep for every couple.

But that does not make the idea meaningless.

It makes it something better approached as a personal experiment.

If you repeatedly wake because your partner steals the covers or because you cannot agree on how warm the duvet should be, using two duvets for 7–14 nights is a simple way to find out whether the arrangement works for you.

Sometimes improving sleep is not about adding another complicated routine.

It can be about removing one small source of disruption.

Frequently Asked Questions

What is the Scandinavian Sleep Method?

The Scandinavian Sleep Method is an arrangement where two partners share one bed but use separate duvets. Each person can control their own warmth, coverage and duvet weight while remaining physically close to their partner.

Does the Scandinavian Sleep Method actually work?

It may help couples whose sleep is disturbed by duvet stealing, cover movement or different temperature preferences. Scientific research specifically comparing one duvet with two remains limited, so the method should not be described as proven or guaranteed.

Do Scandinavian couples really use separate duvets?

Individual duvets on shared beds are a familiar practice in Nordic countries and accommodation, although sleeping habits naturally vary between countries, homes and individuals.

What size duvets should couples use?

Two UK single duvets can work well on many double or king-size beds. Couples wanting more coverage can choose larger individual duvets, although this may add more bulk to the bed.

Is the Scandinavian Sleep Method good for hot sleepers?

It can be useful because a hot sleeper can choose lighter bedding without forcing their partner to do the same. Bedroom temperature, sleepwear, duvet filling and duvet-cover material also influence thermal comfort.

Does sleeping under separate duvets affect intimacy?

It does not have to. Couples remain in the same bed and can overlap their duvets or share one before going to sleep. Comfort and intimacy are personal, so communication matters more than whether there is one duvet or two.

Is it better than sleeping in separate beds?

That depends on the cause of the sleep disturbance. Separate duvets provide bedding independence while preserving closeness. Separate beds may be more effective where mattress movement, snoring or very different schedules are the main problem.

How long should we try it?

Give the Scandinavian Sleep Method around 7–14 nights before judging it. Compare awakenings, temperature comfort, duvet stealing and how refreshed you feel in the morning.

Sources and Further Reading

Andre CJ, Lovallo V, Spencer RMC. “The effects of bed sharing on sleep: From partners to pets.” Sleep Health. 2021;7(3):314–323.
PubMed

Drews HJ, Wallot S, Brysch P, et al. “Bed-Sharing in Couples Is Associated With Increased and Stabilized REM Sleep and Sleep-Stage Synchronization.” Frontiers in Psychiatry. 2020;11:583.
DOI: 10.3389/fpsyt.2020.00583

Troxel WM, Robles TF, Hall M, Buysse DJ. “Marital quality and the marital bed: Examining the covariation between relationship quality and sleep.” Sleep Medicine Reviews. 2007;11(5):389–404.
DOI: 10.1016/j.smrv.2007.05.002

Pankhurst FP, Horne JA. “The influence of bed partners on movement during sleep.” Sleep. 1994;17(4):308–315.
PubMed Central discussion

Okamoto-Mizuno K, Mizuno K. “Effects of thermal environment on sleep and circadian rhythm.” Journal of Physiological Anthropology. 2012;31:14.
DOI: 10.1186/1880-6805-31-14

Lan L, Tsuzuki K, Liu YF, Lian ZW. “Thermal environment and sleep quality: A review.” Energy and Buildings. 2017;149:101–113.
DOI: 10.1016/j.enbuild.2017.05.043

Harding EC, Franks NP, Wisden W. “The temperature dependence of sleep.” Frontiers in Neuroscience. 2019;13:336.
DOI: 10.3389/fnins.2019.00336

NHS. Sleep apnoea.
NHS sleep apnoea guidance

NHS. Insomnia.
NHS insomnia guidance

NHS. Restless legs syndrome.
NHS restless legs guidance

Evidence note: these sources examine bed-sharing, partner disturbance, thermal comfort and sleep disorders. They do not represent a body of controlled research specifically comparing one shared duvet with two separate duvets.