One time when I played minecraft...

[AK-47]

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.)

[Who]

So happened to me, the solution for me was to lock myself in the room, not with door( they kept spawning although it was closed), but with blocks

[Qwertygiy]

Sigh... The free version of Minecraft isn't very fun at all.

[AK-47]

^^ Agreed with that...

Even if I had a fully-registered version, my internet connection isn't fast enough to play the game online properly.

[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...