personally i would invest in a child/dog gate to prevent him gaining access to the room, i think this is the easiest way of doing it as even if you teach him he is not allowed to do it when you are there, if he is used to doing so then he will still do it when you are not there.

Shut the door or get a stairgate. He may create though. How about a really comfy bed on the floor for him. Perhaps treat yourself to a new quilt and give him the current one.

I like the knacker him out bit i(well my bf) bathed him the other day then was playing with him by the end of the night he threw himself on the floor (like how a kid throws a tantrum) but i felt sorry for him im going to look for crates now and he will be gettin my bed sheets(maybe rip them up)

As this dog appears to be a member of one of the banned breeds I would strongly suggest that the OP does NOT kick the dog off the bed.  Confrontational techniques with this type of dog generally have serious side effects, for the owner.

I think this could be managed with environmental management, ie putting a barrier between you and the dog using a dog gate at the bedroom doorway and making sure that the dog has an equally comfy bed for it to lie on so that it has no reason to get on your bed.

Dogs can learn new rules very easily at any age as LONG as you are consistent and NEVER let the dog on the bed. 

Trouble occurs if one day you allow it and then the next you do not.  Dogs are opportunists and will always gamble that today is the day it is ok.

Of course if you have trained your dog to get on the bed and off on command there is no problem.

but when he jumps on the bed, say OFF and knock him off with your feet. He will get the idea eventually.

Don`t see the point in this one. There are better ways to teach a dog!