Is the distressed oak flooring the actual flooring already or something you were going to add?
Grey weathered oak/wood flooring would be calming in a bedroom, especially a small room. It would also be a nice texture to have. One that you could introduce in other parts of the room, at different levels. Grey goes with more colours, and is softer.
What does the rest of the house look like? Does it all flow or is each room totally different?
I would generally in a small space not want more than 3 colours (although different shades of the same colour can be OK). So if the floor was grey I'd want to pick that up at different heights in the room - so maybe grey oak shelves on one wall or round a mirror frame.
Second colour on the walls (personally I wouldn't be keen on white bedroom walls unless you worked hard to soften it with the colours of everything else and had textiles and fixtures with colour at heights, it's very clinical). But the same colour on all the walls. If you really want a feature wall (not brick!) then make sure there are fixtures (shelves, mirror, pictures, etc) on the other three walls to draw them all back together again. Otherwise it feels too stark and disjointed in a small room.
Then your third colour for your textiles, soft furnishings, window coverings.
If it is quite small, arranging the furniture in non traditional ways can work better. So maybe the bedside table in the corner, the bed against the opposing wall, but the table still within reach of the bed. That way you feel like you've got more open room in front of you as the space is in the middle. You don't have to plonk the bed in the middle and make it a centrepiece. Makes the room feel less crowded.
Get some home furnishing/furniture catalogues, cut stuff out and arrange it on a piece of paper to have a play with what looks nice to you, which colours give the room the feel you'd like. Our ideas of a nice room could be horrible to you!