If you live alone, then your bedroom completely a reflection of your own mental condition. If your mind is free from worry and strife, then so will your bedroom. If not . . Other than that, however, there are some things that you can do to help the overall atmosphere in this room. Scent your sheets with an oil whose scent is light and pleasing to you.
Lavender is an excellent choice because it is so relaxing.
You may also wish to put scent on your lightbulbs. Unless you also use your bedroom as an altar room, there really isn't a lot that you need to do in here, other than keep yourself in a good state of mind. If you have trouble sleeping, it's a good idea to burn a black candle in the room during the day to absorb all the energies that are keeping you awake. A bedtime spell - Light a soft green or pink candle for love and place it near the window. In its flame see the faces of those you love, and for a moment be close to them.