I just moved into an apartment in August, due to a divorce... me AND my roommate have both had a "third resident" feeling ever since then. Though, his experiences are different from mine... I do have the master bedroom and I think that is where this ghost lived.
I have narrowed down the timeframe to roughly Midnight PT - 2:00AM PT. Before I noticed the activity between 1:00 am and 2:00 am. But since the winter time change, it has moved up an hour to 12:00AM to 1:00AM. Makes sense, if it is a residual haunting - the event will play back at the time it originally occurred, so the hour difference coincides with the haunting.
I can tell when it is "there" as I start to hear house settling noises, like the walls creaking. Or when someone walks, you can sometimes hear the house settling around them in response. Well, I hear that noise... But no one is around and my roommate is asleep on the other side of the apartment.
Last night, something sat on the edge of my bed. I felt the bed frame "give" a little bit. This happened 3 times. I also hear footsteps walking around the perimeter of my bed. Then they sometimes go into my bathroom which is adjoined to my room. I hear my vertical blinds tapping against each other some times. Like someone is trailing their hand across them all as they walk by. Not violent like, just light touches. I felt something touch my chin when I was laying in bed, on my back with the covers pulled up to my mouth. Like when a cat will gently paw your face... I felt something gently touch my chin through my covers.
I have heard things slump or bump in my closet, things that are neatly tucked away on shelves, that shouldn't move.
I heard a glass tip over in the sink the night before last (11/18/07) and immediately afterwards, the noises in my room started up.
I try not to be awake during these times (midnight - 2:00am), as they are very frightening, and I feel like a "sitting duck" every time it happens.
Sometime I hear someone leaning on my desk, or other little environmental disturbances. Pops, snaps, creaks, things like that.
This apartment building was built in 1981, so it isn't that old. The house settling noises ALWAYS occur at this time... And never any other time. I am very observant by nature, and like to determine a logical answer before I turn to this type of thing. But since day 1, me and my roomie have both said "do you feel something here?" and we both agreed "yes, and I definitely can tell it is male".