Sayadaw: You have trouble falling asleep because you’re focusing a little too much. See if you can tune it down.

Yogi: I don’t know how.

Sayadaw: Don’t take a small object, take a big object like the whole body and spread your awareness over it.

To answer your question why I don’t teach single object meditation, it is because these problems come up. We can apply attention to one object but we don’t know how to tune our energy and that becomes complicated.

Spread it over the whole body; that will diffuse the energy.