A single shared comforter is why so many couples wake up cold, hot or uncovered. Give each of you your own. It is how most of Scandinavia makes up a shared bed. You keep the good part of sleeping side by side, and you stop sharing the one layer that pulls, traps heat and carries every turn across the bed.
- Keep the shared bed. A 2020 sleep-lab study of couples found about 10 percent more REM sleep, and more closely matched sleep stages, on nights they shared a bed.
- Split the covers. A 1994 study of 46 couples found that about a third of their movements in the night happened at the same moment as the partner's, so under one shared comforter you wake to each other's restless nights.
- Two people rarely want the same warmth. A 2015 study measured young women's metabolic rate 20 to 32 percent below the figure building standards assume, so many women run colder than the man next to them.
- More than a third of US adults sleep apart from a partner at least some of the time, and cover stealing is one of the reasons people give.
- On a queen or a king bed, two Twin comforters give each sleeper a full layer of their own.
The bed is worth sharing. The comforter is the problem.
Most couples who fight over the covers do not want to sleep apart. They want to stop waking up cold with the comforter wound around the other person.
That instinct is right. In a 2020 study, researchers in Kiel, Germany brought 12 couples into the sleep lab, with nights sharing a bed and nights sleeping alone. Sharing a bed came with about 10 percent more REM sleep, the stage tied to memory and mood. Their REM was also less broken up, and their sleep stages lined up with each other more often.
So keep the bed, and give each of you your own comforter.
Rebekah makes the bed with her organic comforter and climbs back in with a book.
13 seconds, with sound
Every turn your partner makes travels through one comforter.
A shared comforter ties two sleepers together. When one of you rolls over, the layer on top of the other one moves too.
Researchers at Loughborough University put movement monitors on 46 couples for 15 nights at home. About a third of the movements they made happened at the same moment as a movement from their partner, and people moved more on nights they shared a bed. Women in the study were also more likely to name their partner as the thing that woke them.
The same Kiel study found more leg movements on shared nights. A mattress takes some of that motion. One comforter across both of you passes the rest straight on, along with the tug when someone turns and takes the edge with them.
With two comforters, a turn on one side stays on that side. Your layer stays where you put it.
You probably do not run at the same temperature.
The other half of the fight is heat. One of you kicks the covers off, the other pulls them back.
That gap is real, and it is often about the body, not taste. Researchers at Maastricht University published a study in Nature Climate Change in 2015. They measured young women doing light desk work, and found their metabolic rate 20 to 32 percent below the value the standard comfort model assumes. A lower metabolic rate means less body heat, which is part of why so many women feel cold in a room their partner finds warm.
One comforter has one weight and one warmth, so one of you is always wrong. Two comforters let each of you choose. A warm sleeper can take the lighter, drier layer and a cold sleeper the heavier one, in the same bed.
Our two fills sit naturally on either side of that line:
- Organic Cotton Comforter. Heavy and familiar, with the settled weight of a traditional blanket. Cotton breathes, so the weight does not turn into heat the way polyester does. About 7.5 pounds at Twin.
- Organic Wool Comforter. Lighter for its warmth, and the drier of the two. Wool takes up to 30 percent of its own weight in moisture before it feels damp, so a warm sleeper stays dry instead of waking up clammy. About 6.5 pounds at Twin.
One comforter each, the Scandinavian way.
Walk into a bedroom in Denmark, Sweden or Germany and a double bed usually carries two single comforters side by side. Nobody there thinks of it as sleeping apart. It is how I sleep at home, too, and I would not go back.
Which size to buy
Buy two Twins for a queen or a king bed. Our Twin is sewn 72 by 90 inches. A queen mattress is 60 inches wide, so each Twin covers your half with plenty to tuck under your side and to overlap in the middle. On a king, the two Twins meet across the full width.
Covers and making the bed
Each comforter goes in its own Twin duvet cover, which takes the regular laundry. The ties inside the cover hold the corner loops on the comforter, so neither one slides to the foot by morning. To make the bed, lay them side by side, or fold each in half lengthways on its own side.
Why a bigger comforter only half fixes it.
Going up a size is the usual first fix, and it does help with the tug. A king on a queen bed hangs further over each side, so there is more slack before someone ends up uncovered.
It is still one layer across two people. It still carries every turn from one side to the other, and it still gives you both the same warmth. A bigger comforter solves the pulling. Two comforters solve the pulling, the motion and the temperature at once.
Frequently asked questions
Is sleeping under separate comforters bad for a relationship?
No. The benefits researchers have measured come from sharing the bed, and separate comforters keep you in the same bed. In the 2020 Kiel study, couples got more REM sleep and more closely matched sleep stages on shared nights.
What size comforters do two people need on a queen bed?
Two Twins. Ours is 72 by 90 inches, which covers your half of a 60 inch queen mattress with room to tuck under your side and overlap in the middle.
Can we each choose a different fill?
Yes, and it is one of the best reasons to split. A warm sleeper usually does best under the lighter, drier Organic Wool Comforter, and a cold sleeper under the heavier Organic Cotton Comforter.
Do we need two duvet covers?
Yes, one Twin cover for each comforter. The cover takes the washing, so the comforter inside never needs to go in the machine.
Sources
- Bed-Sharing in Couples Is Associated With Increased and Stabilized REM Sleep and Sleep-Stage Synchronization, Drews HJ, Wallot S, Brysch P, et al., Frontiers in Psychiatry, 2020 (12 couples).
- The influence of bed partners on movement during sleep, Pankhurst FP, Horne JA, Sleep, 1994 (46 couples).
- Energy consumption in buildings and female thermal demand, Kingma B, van Marken Lichtenbelt W, Nature Climate Change, 2015.
- Over a third of Americans opt for a "sleep divorce", American Academy of Sleep Medicine survey of 2,005 US adults, 2023.
Pick one comforter each, in the fill that suits you.
Shop the Organic Cotton Comforter