The first decoration I thought about when it comes to your bedroom it was about the bed sheets. Choose one with Christmas motifs and some pillowcases with messages like: HoHoHo, Let it snow, Merry X-mas, etc.
Another must-have for this season is the decorated table; with seasonal candles, globes, pin cones.
Above the bed you can personalize some Christmas Tree Lights (I will show you in a sooner post how to do it)
If you want to decorate your children’s room you can also opt for an Advent Calendar which, honestly I think it is as beautiful for the adults.