Vacuum under the bed with long straight overlapping strokes that go from one side of the bed to the other side across the width.
How to clean floor under bed.
Although the brush end of a broom can be helpful when cleaning under a bed the handle can be equally if not more effective when you try this hack.
Try putting a laundry hamper in your room to collect your dirty clothes throughout the week.
Keep your floor clear of clutter.
Use the crevice tool or small brush to vacuum along baseboards and to vacuum in the corners under the bed.
Simply wrap the handle in duct tape and roll it or push it back and forth underneath the bed as if you re using a giant lint roller.
Try to keep your floor clear as much as you can to remove the threat of dust and keep your floor clean.