It first happened when a friend had it on a bed and was playing music and using firfox. It was getting bounced around a little bit from girl hopping on the bed.

It freezes after about 20 minutes. But does not freeze in safe mode.

It freezes when I try to restore the system to an earlier point.

Is the problem from being bounced about do you think, i.e. a problem with the physical part of the computer

or

is it a problem with sodtware. But it freezes no matter what program I am in after 20 mins. But does not freeze in safe mode.

And is there anyway I can just bring the computer back to the way it was exactly when I bought it? Do you think that would solve it?

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Punctured bicycle on a hillside, desolate,
Could nature make a man of me yet?

I'd suggest going to a computer shop and telling them what happend maybe they'll repair whatever it is or you'll have to get something replaced. It sounds like it could be the mother board but I could be wrong.

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Dreams mirror the essential conflict of the dreamer.

You could bring it back and ask them if they could reset the harddrive (assuming you don't have too many important things on there)

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Educators destroy your brain,
but you don't know, so why care?
Fagotto