I would think it better to sleep with jade and brass and close to the body for well being. It really leeches out the bad quite well while you are sleeping. Not "evil" negative, just more like destructive free radicals which disrupt the pure function of the the body and soul. "Bloodstone" could really help as well - and I have some nice palm wands of Goldstone (crystallized copper) that work great for conductivity to hematite as well when needed. I use them for batteries - or to loan people energy if they have to vamp it. It still amazes me some people choose to cut themselves off from the higher sources, but wever.
But mostly for my bedding field, I use
clear pearl
white ivory
grey marble
black onyx
blue "tigers" eye (known as Hawk's eye)
blue and gold lapis lazuli
red and gold jasper
pure gold (18kt)
Jade
Brass
pure silver
The Gold, Silver, Ivory, Marble and Onyx I wear. The result is I need little sleep, and feel totally relaxed about it. My sleep is *total* but if somethng comes in my field, I feel it entirely.
Jasmine, Rose, Sandalwood, and a Eucalpytus plant work well for vegetable components. These (J,R,S) I would put in a pouch for overhead. Lavendar and Cedar, and Rosemary also smell great in the actual bed in a herb pillow or pouch!
But hanging salt, not really what I would do. Put a small rock crystal of Sea Salt, in the palm for 15 minutes. Visualize a yellow cube all around you. Use a card with a yellow square on it if it helps. Then let the small salt absorb the whole yellow cube and dissolve it in hot water. dispose of the water with respect and the cares of the day with it. This is what salt does, it is not "disrespectful" to the salt. Keeping salt in a pouch it cannot really do what it does to a stone, basically capture impurities as they show forth in the light refracted through, and reflected from, the stone.
Of course, you have shown here you are willing to rightfully earn the title "aeclectic", and will make any suggestion your own in what you do, and I would love to hear what you decide!