'open bedroom' is not a correct and usable sentence in written English.
To make it correct, you would need to change the structure of the sentence. For example, you could say, "I opened the bedroom door" or "She opened the bedroom window".
The apartment is two levels, with an open bedroom upstairs.
It has a small kitchenette, open bedroom, full bathroom with walls and floors covered in pebbles, and a fireplace designed by Paul Evans.
Paola and the kids and I were exhausted, so we left mid-show and climbed the steep stairs to the single open bedroom above.
I saw American flags flapping in the windows of the Woodrow Wilson housing projects, open bedroom windows, laundry hanging out to dry.
Upstairs -- via a real staircase not a spiral -- there is an open bedroom that could be divided to create two separate rooms.
My grandmother later described how my mother would practise at her open bedroom window, and with what fervour she would belt out "One Fine Day".
At night she roams about, turning on lights, opening bedroom doors.
One witness said a police investigator twice declined her offer to show him the close and unobstructed vantage point from a partly opened bedroom window where she had watched and heard the struggle between Mr. Martin and Mr. Zimmerman.
The hooker grabs my hand and pulls me toward a half-open bedroom door.
Others resort to wide-open bedroom windows, oscillating fans, cold drinks, minimal clothing or nighttime ocean dips.
Completing Rogan's domination of Cartmel, he has slowly opened bedrooms for his guests around the town: seven above L'Enclume, and two others next to the new brasserie.
