One time when I played minecraft...

[Login]

Every time I slept, either a zombie or a skeleton will spawn beside me!.

So first I tried placing torches all over my bed.
Didn't work.

I kept trying again and again to see if it worked.

At the end, I moved my bed to the center of my room. It worked! (It was at the very corner of my room before.)

Corners are a mob-trap. My house was originally stuffy, so I couldn't sleep even if I wanted to. I ended up sleeping outside...