Pyramid shape under the head

[Ankh]

I use a little, crystal/glass pyramid almost every day. But can't use for more than 15 minutes, if too tired, then sometimes 18 minutes. After that time, I start to feel tired again, instead of jumping out of bed. So I think it's important to feel within how it affects one's body and for how long one should lie over it.

Where to put this pyramid after use? I mean where to keep it when not in use?

We don't know how far up the third spiral of the pyramid reaches, therefore I believe that it's important to keep it in such a way that it doesn't affect your neighbors if you live in an apartment and have people above you. I do have  a family that lives above me, so I keep my pyramid in a little storeroom that I have inside the apartment. They have an exactly same looking home so if they do walk inside, they shouldn't be there for more than just couple of minutes. One can also keep the pyramid in a kitchen dresser or something like that, if you know that your neighbors have the same shelves in the same spot. It should also limit their time under any possible effect of the pyramid.