Two duvets, or one size up

Because it is sized for the mattress and not for the people on it, people say. Many people say to buy the cover a size up from the bed: the extra width means the cover still reaches you after your partner turns, it can be tucked, and some people say you can wrap yourself in it like a parcel. Others add that the overhang covers the sides of the mattress and makes the bed look finished, that a pet sleeping on top takes up part of a standard-sized cover, and that a cold sleeper on a single bed does well with a double-sized cover. Some people say the difference in comfort was marked. One person puts a limit on the rule this page keeps: a couple’s duvet on a single bed is miserable to change and looks wrong.

Some people say it is the better answer for two people, and it is an ordinary arrangement in some countries. Each sleeper has their own cover, sized for one, so no one steals it, no one wakes cold, and a hot sleeper and a cold sleeper stop negotiating; many others describe the same relief in their own words, many people prefer separate covers, and some say sleep improved and arguments fell. Some people add a shared quilt or blanket over both for cold nights. One person describes how to make the bed so it looks made: fold each duvet lengthways to meet in the middle, or lay one on each half. One person says it is the norm in Germany and one says the shared duvet is most common in Ireland, Britain and New Zealand — both individual people, and this page does not check them. A weighted blanket may be the exception, some people say, because of its weight and fit.

That is the argument rendered below, and people have it in many discussions. The case for one large cover is warmth shared and the ease of lying close — some people say separate covers get in the way of that, some that it makes the bed look like a separation. The case for two is that a shared cover, however large, eventually travels with the person who moves most, and that two people rarely want the same weight of cover. People’s own decider is how alike the two of you are: if you run at the same temperature and lie still, one big cover does the job; if one of you is a blanket thief or one runs hot and one cold, people say two, and some of them say to start the night under both and separate later. One person says a shared flat sheet under two duvets keeps the closeness.

Two things, people say, and one trap. First, the biggest sizes are not bigger in every direction: some people say the California king runs longer than a standard king and is the narrower of the two, so one size up from a king may not add width at all, and many people say the rule simply runs out at the top of the range — there is nothing larger to buy, so the answers there are an oversized specialist cover or two. Second, one person warns the same nominal size varies between makers, so check centimetres, not names. The trap is the cover: some people say a bigger duvet will not fit the cover you own, one person first said a cover one size up would not fit the duvet inside, then rotated it after a wash and found it did, and one person warns duvets are sometimes cut smaller than their covers even at the same label size. Some people add the domestic check: will it fit in your washing machine, or is the oversized one a laundrette job? How to launder several large covers, and what any of this costs against the alternatives, are not covered here, and brands are asked for and not given.

Yes, and people list the ways. Some people say an oversized duvet hangs over the sides and gravity pulls it off in the night, so that one sleeper wakes uncovered anyway; one person warns down settles toward the overhanging edges and thins the middle; one says a cover that pools on the floor feels heavy and trapping; one says getting out of bed under several large covers is a struggle in winter. For a hot sleeper who sleeps alone, an oversized duvet can be too much to escape from, and one person says a large cover traps a single sleeper when they get hot. Other warnings are about the floor: a cover that touches down on both sides is a bridge for spiders, one says, and for cockroaches where you have them, says another. One person warns a bigger cover does not fix cold feet if the weight of the thing is wrong for you, and which fill or weight suits a hot or a cold sleeper is not covered here.

People argue both, and this page carries the argument without picking. Some people dislike duvets altogether — wrestling the cover on, the fabric sagging at the head of the bed — and prefer quilts or blankets; some people dislike the top sheet, which bunches and slips out from under the duvet, against one person who thinks sleeping without one is odd. Some people say the habits differ by region: the European arrangement is a bottom sheet and a duvet in a washable cover, the American one often a comforter with a top sheet under it, and some people say a top sheet is hard to find in Europe. People settle the words, one person each: a duvet is the insert that goes inside a removable cover, a comforter is the all-in-one that does not; Australians say doona, Britons say duvet, and some people did not know the word at all. One person points out Americans do have duvets, whatever an earlier person claimed. One person with a gap between two single mattresses on a king frame fixed it with one king-sized protector and sheet over both.