Best direction to sleep: what your Kua number assigns you

You are standing at the foot of the bed with your phone held flat, watching the little compass needle settle, trying to decide once and for all which way the headboard should actually point.

The best direction to sleep is not the same for everyone. It follows from your Kua number, a single digit calculated from your birth year and your gender at birth, which sorts you into an East or West group and hands you four favourable directions. Ordinary seasons default to Tian Yi, the recovery direction. A launch season points the headboard toward Sheng Qi instead.

Find your number before you find your direction

The Kua number is a single digit between 1 and 9, skipping 5, and it comes from two inputs only: your birth year and your gender at birth. The calculator handles 5 separately, so you never have to think about it. It also handles the one detail that trips people up on their own: if you were born in January or early February, the lunar year the tradition counts you under is not always the calendar year on your ID, and the calculator applies that adjustment automatically. Find your Kua number takes ten seconds and returns the number, your group, and the four directions that go with it, all in one pass.

East group is 1, 3, 4, 9. West group is 2, 6, 7, 8. That split matters more than almost anything else in this system, because the supportive directions for one group are the exact directions the other group is asked to handle with more care. East group's favourable directions lean toward motion and outward work: learning, building, being seen. West group's lean toward gathering and inward work: deepening, finishing, holding onto what has already been built. Plenty of East group people are quiet by nature and plenty of West group people are the loudest person at the party. It describes which directions the tradition reads as supportive for you, not your personality.

What your four favourable directions are for

Traditional Each of your four favourable directions carries a specific job. Sheng Qi, "generating qi," is the active push direction, the one the tradition points toward for launch seasons and important work. Tian Yi, "Heavenly Doctor," is the recovery direction, the default headboard for ordinary seasons. Yan Nian, "long years," is the relationship direction, the one couples are typically pointed toward. Fu Wei, "sitting in stability," is the solitary-work direction, for slow and deep tasks.

Notice the name on the one that shows up most nights of your life. Not "calm." Not "rest." Heavenly Doctor. A bed is where the body repairs itself, and the tradition named the direction for that job accordingly, centuries before anyone had a word for sleep hygiene.

Which direction actually goes on the headboard

For an ordinary stretch of life, the tradition points the head of the bed toward Tian Yi. When the season is a launch instead of a rest, a new job, a project that needs momentum, it points the headboard toward Sheng Qi for a while. For a shared bed, the tradition points the headboard toward Yan Nian, the direction it associates with a bond meant to last.

The bed rarely turns easily once it is against a wall, so a practical version of the rule matters more than a perfect one: any of your four favourable directions beats any of the four cautious ones. If the only wall that fits a bed frame happens to be one of your cautious four, moving to a merely-fine wall within your favourable four is still worth doing. Better than what you had is the actual point, not perfect.

The other four, held lightly

Traditional The remaining four directions have names too: Huo Hai, Wu Gui, Liu Sha, Jue Ming. The tradition treats these as lower-priority placements rather than anything to fear or avoid at all costs. They are simply the spots you assign last, once your favourable four already have jobs. A guest room, a storage wall, the side of the house the garage backs onto: the cautious four still work fine for the parts of a home that are not asking for recovery, momentum, or connection.

When the two of you disagree

About half of all couples turn out to be a mixed pairing, one East group and one West group, and Traditional the tradition's answer is to share the home across both people rather than optimise every room for one of you. The move is to assign functions room by room. The shared bedroom can favour one partner's relationship direction, and the tradition specifically points couples toward Yan Nian for that room. The home office favours whoever actually works in it. The seat at the head of the dining table favours whoever sits there most nights.

Preference In a shared home, pick the main user of each room and orient that room for that one person. Nobody wins every room, and nobody is meant to.

Tonight, that is the whole task: find your number, find your group, and check which of your four directions your headboard is actually pointing toward right now. If it is one of the cautious four and the bed can turn, turn it. If it cannot, know which wall you are working with, and let that be enough for tonight.