We always recommend going one size larger than your bed.
For instance, if you have a queen bed, buy a king doona. Why? This looks so much better on your bed and is so much more comfortable - especially if you’re sharing the doona with someone else (no one likes a doona hog).
If you already have existing sheets (doona covers), you may want to stick to your current sizing, and that's ok too. We get it, bedding can be expensive.
Finally, if you have a King Single, please purchase a double doona. Trust us on this one.