Don’t know why? Is this a trick question? Nobody said you had to get a rug for under your bed, you get to decide. Some people choose to because they prefer to wake up an step on a rug, or like the warmth it brings to a room, or color, etc., but you don’t have to.

You needn't! simple as that, if you want to avoid the clickity-clack of footwear in the room, or want to add a little warmth not just in the room physically, but also visually, then add a rug.

Plus, honestly, no one will know how expensive it is. Adding a rug will also prolong the life expectancy of your flooring by providing a protective barrier.

Funny thing...We removed carpeting to eliminate dust, mold, etc. We are in SW FL. However, it seems that almost every photo I see has a carpet under bed.