u/FinGamer678Nikoboi

It's a horror movie scene where a character enters the room or is already in it, and lies down on a perfectly clean looking bed, white sheets. But when they lie down it sinks down and is all wet. Turns out that right below the top sheet it's soaked in blood, and pressing down reveals it.

It's probably some supernatural horror, like Hellraiser, Nightmare on Elm Street etc. It doesn't seem like something just a regular human slasher could or would pull off.

I skimmed through Nightmare on Elm Street, Hellraiser I and II. Didn't find it in any of those.

I'm not sure it's a Hellraiser movie either. The vibe is there, but the mattress in the Hellraiser movies has always been soaked and clearly, visibly so. Not really in character for the Cenobites either?