First, we start with the furniture and bedding that Jill and her husband already have:
A great (and cheap) way to dress up the wall behind the bed is a damask stencil. It will lend softness to the large wooden headboard and add dimension and visual interest to the room.
Royal Design Studio has a great selection of them. I also like Stencil Planet - their Mococcan Flower Damask stencils are my favorite.
This Moroccan tile stencil by Royal Design Studio is very cool.
Hanging a curtain behind the bed also creates a luxe look.
You might think about getting new bedside tables or painting the ones you have. An eclectic look will seem less "put together." A glossy coat of paint and new hardware can do wonders. As for options to buy, I'm salivating over this one from Cottage and Bungalow, but the price tag is staggering at $925.
Here's a cheaper option from TargetHowever, a round or curvy side table would balance all the sharp edges in the room (i.e. bed, dresser, headboard, etc).
For bedside lighting, a lamp with some shimmer to it will also balance the wood headboard and bring some shine and light to the area.
The master suite will also include a seating area. My vote is for a patterned, modern fabric.
Here's a couple chair options from Target
And Pottery Barn
A round ottoman as the coffee table perhaps
Ottomans can be pricey though. Jenny from Little Green Notebook has incredible tutorial on how to make this....
Some accessories for Jill's new bedroom will complete the look. This Beachcomber Basket from Pottery Barn add gorgeous texture and would be a good spot to store magazines and a yummy throw.