The size you choose is the one decision you cannot change later. It is also the one most people make from a photograph.
Everything else about a bed can be lived with. A headboard you tire of is a mild regret; a colour that reads differently at home is a shrug. Size is the one that follows you every day, because a bed that is too big for its room does not feel luxurious. It feels like an obstacle you edge around on the way to the wardrobe.
The first thing to know is that bed size names are not standardised across markets, and Sri Lanka sits at a crossroads of several. The international Queen is 60 by 80 inches. Much of South Asia works to 60 by 78. Plenty of locally made beds are sold to older imperial sizes again, and some sellers quote the frame's outer dimensions while others quote the mattress that fits inside it.
The consequence is ordinary and annoying: a "Queen" mattress and a "Queen" frame from two different sellers may not fit each other, and fitted sheets bought for one may not stretch over the other. So do not shop by the name. Shop by the two numbers, and ask for them in writing if a listing does not show them.
For reference, Kira quotes in centimetres and builds to one set of numbers across the range: Queen is 1.5m wide, King is 1.8m wide, both 2m long, and every Kira bed is slatted to take any standard mattress at those sizes.

The useful question is not "will the bed fit?" It is "will the room still work with the bed in it?" A bed can fit a room perfectly and ruin it.
The working rule is to leave at least 60cm of walking space on every open side of the bed. That is roughly the width of a person turning sideways with an armful of laundry. Below about 60cm you start turning your shoulders to get past, and a bedroom that requires you to turn sideways never quite relaxes.
Three clearances people forget until the bed arrives:
Do this with masking tape on the floor rather than in your head. Tape the outline, live with it for a day, and walk the route you actually walk at 6am. It is fifteen minutes that has saved a great many people from a bed they resent.
The headboard adds length. An upholstered headboard is padded, so the bed's total footprint is longer than the mattress. If your room is tight end-to-end rather than side-to-side, that is the measurement that decides it.
A tall mattress changes the whole bed. This one surprises people. A 30cm mattress like the KIRA Sunrise sits considerably higher than a thin foam mattress, which raises the sleeping surface, shortens the headboard you can see above it, and makes the bed feel bigger in the room than the floor plan suggests. If you are buying a frame and mattress together, think about them together.
The route in. Measure the front door, the stairwell turn, and the lift if there is one. Kira beds arrive flat-pack and are assembled in the room, so this is rarely a problem, but a fully built bed frame from anywhere else has to physically get up your stairs, and stairwell corners are where deliveries go wrong.
For most Sri Lankan bedrooms, and most couples, the answer is Queen. It sleeps two people properly, it leaves room for the furniture a bedroom actually needs, and it keeps the walking space that makes a room feel calm rather than full. It is the size we expect to sell the most of, and we would rather say so.
Choose a King when the room is genuinely large, when there are children or a dog who arrive at dawn, or when one of you is tall enough that shoulder room is not a luxury. A King in a large room is wonderful. A King in an average room is a wardrobe you can no longer open.
One detail that may decide it: at Kira, genuine calfskin leather is made in both Queen and King, while the fine-wale corded fabric is made in Queen only. If your heart is set on fabric, you are choosing a Queen. If you want a King, you are choosing leather.
Unsure between them with your room's measurements in hand? Send us the numbers on WhatsApp and we will tell you honestly which one we would put in that room.
Ignore the size name and get the two numbers. Tape the outline on your floor and keep 60cm of walking space on every open side. Remember that the headboard adds length and a tall mattress changes the proportions. Then choose Queen unless the room genuinely earns a King. Every KIRA bed comes in Queen at 1.5m, with King at 1.8m in genuine calfskin, rated to 300kg and backed by a 2-year structural warranty. Beds are open for pre-order now and ship from the August 2026 launch, with free delivery across the island.