Measure three things

Record the internal frame width and length, the room’s usable floor space, and the narrowest point on the delivery route.

Allow for real life

Check wardrobe doors, windows, bedside storage and the route you take through the room. A floor plan should work after the bed is dressed and occupied.

Write the numbers down

Keep the measurements with you when shopping and compare them with the exact product dimensions rather than relying on labels alone.