The short answer: an 8x10 under a queen bed, placed sideways with the top third of the rug tucked under the bed. That gives you 2 to 3 feet of soft landing on both sides and at the foot, which is the whole reason a bedroom rug exists. Everything else in this guide is the reasoning, the budget compromise, and the workaround for rooms where an 8x10 physically will not fit.
The rule: your feet should never find bare floor
A queen mattress is 60 inches wide and 80 inches long. A bedroom rug has exactly one job: when you get out of bed, half asleep, your feet land on something soft. That means the rug has to extend past the sides of the bed by at least 18 inches, and honestly 24 or more is where it starts looking intentional instead of barely sufficient.
Do the arithmetic and the minimum workable width is around 8 feet. Which is why the 8x10, run horizontally under the bed, is the default answer for queens. Start the rug about a foot down from the head of the bed, or just in front of the nightstands, and let the rest spill out toward the foot. The bed anchors the rug, the rug frames the bed, and the room suddenly looks like someone planned it.
Floral Washable Rug, 8x10
What it is An 8x10 with a faded vintage floral pattern that reads like it was inherited rather than ordered, and it goes in the washing machine, which no actual heirloom will ever agree to.
Style it Horizontal under a queen, top edge just in front of the nightstands. The pattern hides the traffic lanes on both sides of the bed, which is where every pale rug goes to die.
Why the small rug always fails
A 5x7 under a queen bed disappears. The bed is wider than you think once you add the frame, and a small rug ends up entirely swallowed, with maybe six inches of fabric peeking out on each side like the room is wearing ankle socks. Worse, a too-small rug visually shrinks the whole room, because it draws a little box in the middle of the floor and tells your eye that this is where the room ends.
This is the paradox nobody believes until they see it: a bigger rug makes a room look bigger. More floor covered reads as more intention, fewer awkward margins, one continuous plane. If you are choosing between two sizes, take the larger one. I have never once walked into a room and thought the rug was too big.
The 6x9 compromise, done correctly
If the budget or the room says no to an 8x10, a 6x9 can work under a queen, but the placement changes. Slide it further down the bed so it sits under the lower two thirds, clear of the nightstands entirely. You keep the landing zones where your feet actually swing out, and you get a generous band of rug across the foot of the bed. What you give up is the framed, edge-to-edge look, which is a fair trade at this size.
Lahome Floral Washable Rug, 6x9
What it is A 6x9 floral in colors that flatter wood furniture, thin enough to sit under a bed frame without turning the mattress into a see-saw, and washable for the day the coffee makes it to the bedroom.
Style it Lower two thirds of the bed only. Keep the nightstands on bare floor so they sit level, and let the rug own the foot of the bed.
The runner workaround for tight rooms
Some bedrooms simply do not have the floor for a big rug: the bed is against a wall, the closet door swings wide, the radiator has opinions. The old designer trick is two runners, one on each open side of the bed, or a single runner on the side you actually get out of. You get one hundred percent of the barefoot payoff for a fraction of the floor space, and something like this handwoven wool runner looks deliberate rather than downsized.
If your bedroom is larger and the queen floats in the middle of it, you can also go up a size. A 9x12 like this irregular-edge wool rug puts the entire bed, both nightstands, and a bench at the foot on one plane, which is the most furniture-showroom move available to a normal human budget.
Pile, pattern, and the washability question
Under a bed you want low to medium pile. High shag under a heavy frame gets crushed into a permanent record of where the legs stood, and it makes the bed wobble besides. Pattern is your friend here, because bedroom rugs live in shadow half the time and collect traffic wear in two predictable stripes. A pattern absorbs all of that. A solid pale rug files a complaint about it daily.
And washable is not a gimmick in a bedroom. Between pets, coffee, and whatever mystery befalls all bedroom rugs eventually, being able to stuff the thing in a machine is worth more than an extra millimeter of pile. If texture is the priority instead, the chunky woven pieces in Texture Is the New Color bring the tactile payoff, and the whole cozy-layers philosophy lives in the Classics and Cozy mood.
So: 8x10 sideways with the top third under the bed, 6x9 pushed toward the foot if you must, runners if the room fights you, 9x12 if it does not. Once the rug is right, the rest of the room gets easier, and How to style a bedroom that doesn't look like a hotel covers everything that sits on top of it.