In pe, I'm going to make a wall around my house to keep monsters away so I can sleep, but I don't no how big of a radius to have.
How close does a monster have to be to be nearby in minecraft pe?
Eva
You can't sleep if a hostile mob is within 8 blocks of the bed horizontally and 5 blocks vertically. If a monster is nearby, even through a wall, the message "You may not rest now, there are monsters nearby" will be displayed and the player will not be able to sleep until the monsters go away or are killed.
ChrisLuigiTails