So I got this sleep spray in a hotel and a sort of roll thingy which you need to roll over your veins and rub them together. They are very effective for falling asleep and staying asleep for a long time. Does that aid lucidity? Anyways here are the ingredients:

Aqua (Water), Polysorbate 20, Phenoxyethanol, Benzoic Acid, Dehydroacetic Acid, Ethylhexylglycerin, Lavandula Angustifolia (Lavender) Oil, Pogostemon Cablin (Patchouli) Oil, Vetiveria Zizanoides (Vetiver) Root Oil, Cinnamomum Camphora (Camphor) Bark Oil, Chamomilla Recutita (Blue Chamomile) Oil, Geraniol, Citronellol, Limonene, Linalool.

(Spray)

Ethylhexyl Palmitate, Lavandula Angustifolia (Lavender) oil, Eucalyptus Globulus (Blue Gum) Leaf Oil, Ravensara Aromatica Leaf Oil, Boswellia Carterii (Frankincense) Oil, Eugenol, Geraniol, Limonene, Linalool.