By the way, speaking of matter, there is indeed a lot of space between nuclei and their companion electrons. This means that matter is not as dense as we usually think of it, but it is quite solid because of the electrostatic force. The electrostatic force is what keeps you from falling through your chair. However, if you were to eat enough doughnuts, you might become massive enough to overcome the Chandrasekhar Limit, at which point your gravity would exceed electron degeneracy pressure and you would begin to collapse in on yourself and completely crush your chair until further collapse were halted by Pauli exclusion. In fact, this is what happens to neutron stars. Neutron stars do not contain lots of empty space. They are extremely dense, being composed almost entirely of neutrons.
So if you want super dense matter with no space in it, go fashion yourself a chair out of neutron star. It might support your weight for a while. However, be warned that if you eat a sufficient quantity of glazed doughnuts, your gravity will exceed neutron degeneracy pressure. Gravity will overcome the Pauli exclusion principle, and my dear fellow, you will become a black hole, the most massive and deadly stellar remnant there is. Not even chocolate cream-filled escape its gravity.