problem with rigidbody2D center of mass

Hi all, I have problem with center of mass.
In this case ,my square have a rigidbody2D and value of center of mass is Vector2( 0, -1.6).
when my square drop on ground with a little rotation in z axis (rotation.z is -15), not sleeping on right but quickly sleep on left.
actually in want first sleep on right.

notice: i can fix this with code but i want do this without code (For many reasons).

are you have solution for this case?

for understanding better of this case i uploaded some GIF.

this is normal

in this case i do that with code,but i want do this without scripting.

i now soccer physics (game) do this without code, but how?

Thanks.