is this weird

ok I've slept in a room with ppl for nearly all my life, so I don't like to sleep in a room alone, my older sister is at our pawpaw and granny's house for a couple of days so now I have to sleep in the room by myself for a couple of days since e have a cat which loves to sleep with me or my older sister it gives me company, but this morning at 5 she woke up and went to the top bunk and I woke up all of a sudden. this asn't the only time when someone left the room when my older sister was gone and I woke up not feeling their presence, is this weird