There are many moves for that, such as Hypnosis, and Sleep Power.
Beat the master in the Fighting Dojo to have him move away from the door, allowing you in.
You can find them in grass but if you run or bike then it will go somewhere else. They run away after one move so you have to use a master ball, make it fall asleep, or get a Pokemon that has an ability that makes it so that no Pokemon can run away from you during battle.
Dream eater only works on pokemon that are currently asleep. However, as a ghost type move, dream eater has no effect on normal type pokemon, whether they are awake or asleep.
The weakest Pokemon move is teleport because it just runs away from any wild Pokemon.
play pokemon and when you see it it might use this move that will make you asleep so use a pokeball giggly puff is a terible pokemon
the move deleter is right of the Pokemon gym in fuchsia city.
move left move right
once you get to the asleep snorlax go to the radio and move it to the tip of the circle and there you go he is awake
Turn any PC (in game) go to Pokemon storage go to move Pokemon select your Pokemon select move Pokemon move cursor to Box 1 press right
Sleep it with hypnosis, it cannot run if its asleep, or you can use the Pokemon ability arena trap or the move scary face. or use a shadow tag that's found with a wabafet
Try and use another effective move, switch pokemon, or try and get the leaders pokemon asleep to beat it down slowly.
You have to use a Pokemon with an ability such as Arena Trap. This ensures that the foe cannot teleport out of battle.