I trained Chica this way. Remember she was 2 pounds when I got her. I bought a ramp and put it by my bed. Chica (chihuahua) sleeps in my bed. I trained her to use the ramp to go down to the weewee pad on the floor by the bed.She would go pee and come up the ramp and go back to sleep.She is very smart.She was 11 weeks old when I trained her. I didn't have her in a crate or have to get up to take her outside. I think that was a good idea the way I did it.