Build a bed?

[Joesycop]

I can't find any Fir Bough only Elm Bough. Where do i find it?

[tristamizumi]

There's two types of forest:

* Deciduous, which has trees like Elm, Oak, Mulberry, Apple, Maple, and a few more.
* Coniferous, which has Fir and Pine trees.

It sounds like you're in a deciduous forest. You'll have to wander around until you either find a coniferous forest (ground color will slightly change on the minimap), or get lucky and find some fir trees on some grassland/heath/moor.

[Joesycop]

Thanks found them.

[EnigmaAlpha]

Deciduous FTW.