Baby likes bassinet during day, but not at night

My daughter is a month old. She’s a pretty good sleeper but for some reason at night, she hates her bassinet. During the day she sleeps in it no problem, but at night she fusses and whines unless I put her in the bed with me, then she’s out like a light. During the day, she’s content to just lay in there while I get stuff done and just look around.

Even if I do get her to fall asleep in it at night, she doesn’t stay asleep for very long at all.

Why could this be? What can I do to get her to sleep in it at night? I don’t want her to develop a habit of sleeping with me, because I don’t want to have to break that later.