Which chart type is generated and used for this?
Sidereal whole-sign houses.

I don’t know my birth time. Can I use just the somnnumerology method?
Definitely!

4 & 8 – and to an extent 2 & 7 – are considered unlucky numbers in Chaldean numerology. Why are they listed as beneficial numbers for certain birth numerology combinations?
In Chaldean numerology, 4 & 1 are best friends, 2 & 7 are best friends, and the friendliest number to 8 is 5. As a result, the best birth numerology combinations for those four numbers – 4, 8, 2, 7 – to serve as beneficial numbers to, are those where the respective friendly numbers – 1, 5, 7, 2 – are both Day # and Life Path #.

Aren’t 4 & 8 best friends too?
In terms of person-to-person relationship compatibility, absolutely. But not in this context.

I noticed that there are different colors and gemstones for somnastrology and somnnumerology. Can I use the colors and gems that suit both my birthdate numerology and my birth chart?
Absolutely! That’s exactly how you should use them. For instance: for writing your slumber numbers, use your somnnumerology colors; for choosing bedding, bedroom wall paint, and other bedroom furniture, use your somnastrology colors.

I feel overwhelmed by all of this information. Can I use just one part of either somnastrology or somnnumerology, and if I do will it still help me?
Yes. If you wish to do only one part of either, I recommend the slumber-number part of somnnumerology and/or, if you know your birth time, the planetary-symbol part of somnastrology. The reason why is because they’re both forms of art therapy, which studies have shown reduces stress, and lower stress levels = better sleep. As shown on Arithmintuitive’s testimonials page, even doing just the slumber-number part in somnnumerology – without the gemstones – can help generate positive results.

How did you determine the beneficial numbers for each birth numerology combination?
By intensively studying each number and the lucky and friendly numbers to them as established in Chaldean numerology, and then carefully extracting the commonalities of those establishments.

How can I learn more about Chaldean numerology and sidereal / Vedic astrology?
There are countless helpful resources on the internet and at your local and online libraries and bookstores. Type in “Chaldean numerology” and/or “sidereal astrology”/”Vedic astrology” in your online search engines of choice, and in your libraries and bookstores search for any section that is labeled “astrology”, “numerology”, “self-transformation”, etc.