Little black bugs
They look like some type of weevil (which is a beetle). It may be a stored product pest, so I would look for any items that could be the "source" (where they are coming from). If the bedroom is near the kitchen, then start by looking through your pantry. Otherwise, you may want to look for heating packs that contain rice, potpourri, dried flowers/ wreaths, or sometimes in makeup or medications (depending on formulations).