I remember seeing things in my room as from as early as 2.5 years old. I remember it vividly, but now I can't say for sure what it was, it could have
been my imagination after all (imaginative images can form a realistic memory in your brain!), I just can't say for sure
But even when I do believe in the posibility of 'entities' visiting people, you should consider all angles of this problem you are having and not
focus on a paranormal cause only.
Is your daughters bedroom on the same floor then your livingroom (or the room you are in when she goes to sleep)? If so, you can try to leave her
bedroom door open, with the light in the hallway turned on, so she can clearly hear the noises coming from the room you are in (tv-noise, your voice,
etc). It won't keep her up, but should relax her enough to fall asleep and it makes her feel less alone in her bed.
Sometimes a crack in the wall is something 'scary' for children. I remember my own daughter around that age, she got afraid of a cloths hanger that
was left on the doorknob or a stain on the carpet. Consider it all.
Try hanging a poster of her favorite cartoon or Disney character high to the sealing and tell her 'something good' about it.
Now for the 'weirder' stuff:
Make sure there are no electric wires going under her bed. If her bed is on a first floor, make sure there are no electric devices, like tv or radio,
on the floor below under her bed. If so, move the bed.
I experienced this first hand when I was in my twenties already and had dificulty sleeping. Moving the bed around, after reading about the impact of
wires, was the solution for me. I also moved my clock because the wire went under my bed. It helped.
Should you do this, involve your daughter, let her help choosing the new place for the bed so it is a 'good' experience for her.
If you feel like you need to clense your house from negative energies, the most simple thing to do this is by using self-made salt water. Salt water
is known for it's purifying qualities. I used it every time I moved, even in my workspace. It's like 'resetting' the energy of a room. It doesn't
hurt to try.
I hope you reslove this issue soon,