When the bedroom door is not tightly closed, it can be caused by several reasons. Here are some tips to help you.
The lock tongue is short and can not be locked, for the problem of the lock tongue, you can reinstall the door lock and other fasteners.
Use the cross screwdriver to loosen the lock latch screw, move the lock a little bit in the direction of the room, and then install the lock to lock.
Door sinking, you can use a door wedge, is a small wedge of wood, plugged in the bottom of the door, to target the door sinking.
Door or door cover deformation, for the door and door cover deformation. Should be the decoration of the wood to reserve the virtual position is too little, in the case of thermal expansion and contraction of the situation is not tight, you can find a carpenter to readjust the position, or plane a little door wood.