This is just my opinion but I think if you do not want him in your bed then you should not start a habit of it. He also might end up peeing or pooping in your bed or he might just wake you up early anyway.
I had a yorkie many years ago that would mess in my bed while i slept so that method did not work for me .It is also hard when they are older to get them out of bad habits. To me it also seems like rewarding bad behavior but again that is just my opinion.
Does he have a bed of his own or you could possible start to crate him gradually and have him in the crate near your bed at night for sleep. My dogs sleep in their carrier beds and love them. I cover them over and it is like they feel safe. It is a denning instinct dogs have.They dont make a sound all night and one of them is only three months old.
If he still go's in the house in the day you might have to confine him to a smaller area like a pup for a while.
Good luck anyway