The new mattress arrived two days later.

For exactly one night, Mia slept peacefully.

Then the complaints began again.

“Mom… it’s happening again.”

That was when I decided to install a small security camera in her bedroom.

At first I convinced myself it was only for reassurance. Mia had always tossed and turned while sleeping, and perhaps she was kicking the bed frame during the night.

The camera linked to an app on my phone so I could check the room whenever I wanted.

For the first few nights, nothing unusual appeared.

Mia slept normally.

The bed didn’t move.

But on the tenth night I woke suddenly.

The digital clock read 2:00 a.m.

My phone vibrated with a notification.

Motion detected – Mia’s room.

Still half asleep, I opened the camera feed.

The night-vision image showed Mia lying on her side beneath the blanket.

Everything looked calm.

Then the mattress moved.

Just a little.

As if something underneath had shifted.

My stomach tightened.

Because Mia’s bed didn’t have storage drawers.

There was nothing beneath it except the wooden floor.

But on the camera...

Something was clearly moving.

I stared at the phone screen, trying to convince myself that I was imagining it. The grainy black-and-white night-vision image showed Mia lying motionless on her side, her small chest rising and falling steadily with each breath. The room remained quiet. The only motion came from the faint sway of the curtain near the window. For a moment the mattress stopped shifting and everything appeared normal again.

Then it moved again.

Not dramatically—just a slow pressure from below, as though someone were pushing upward with a shoulder or knee. The mattress dipped slightly beneath Mia’s back.

My heart started pounding.

“Mia…” I whispered to myself, even though she couldn’t hear me through the camera.

The movement happened again, stronger this time. The mattress lifted slightly in the middle before settling back down.

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