Instructions
Give your dog a bed of his own and show him where it is. Whenever he jumps onto your bed, or looks like he's thinking about it, take him to his own bed by the collar and make him lie down.
Choose a phrase that indicates to the dog that he shouldn't be on the furniture. You can use ̶0;Go to your bed̶1; or ̶0;Off.̶1; Use a rolled newspaper to lightly tap your dog on the butt. Don't hurt him, but make it clear that he's not allowed on the bed.
Reward your dog for behaving correctly. Take him to his bed at night and tell him to lie down. When he does, give him a bone or other treat. After a time, he'll go directly to his bed when he senses you're preparing to sleep.
Gate your room to keep the dog out. Leash him near his bed or secure him in a crate at night. While gates and crates may not be the ideal solution, they may be the only one if your dog doesn't learn to stay off the bed.
How to Keep an Adult Dog off the Bed
The bed never seemed too small until the dog adopted it as his new sleeping grounds. Dogs, like humans, can break and learn new habits at any point in their lifetimes. You can train your dog to stay off the bed and sleep elsewhere but retraining your dog will take time and consistency. Don't give up just because you don't see progress. About the time you think your dog is beyond all hope, he'll catch on and impress you by staying in his own sleeping space.