Looking on the internet deeply has found these results:

so much and so heavy is the most popular phrase on the web.

so many and so heavy 1297,000 results on the web	so much and so heavy 1985,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
I had no idea it was so heavy. Your eyelids are getting so heavy... so heavy... so heavy... that you cannot keep them open. No wonder the bag was so heavy. It was so heavy hearing the music played to perfection. Because nature is delicate, and we're so heavy My baggage didn't seem quite so heavy anymore. handed. It weighs so heavy on you, Bruno.	It's hard to talk with so much heavy chewing to do. Battalion says there's too much heavy fighting They had the perfect culprit, a strange teenage boy that no one in town liked much and listened to heavy metal. Mr President, ladies and gentlemen, I do not want to bring out quite so much heavy artillery here but concentrate my criticism on a technical question, namely Parliament's disappointment that it was not consulted on a major question. You don't want to rock the boat with big solicitors by demanding payment for a junior member of chambers when the same solicitors bring the senior end so much heavy work. I don't think we'll be taking too much heavy fire with this group. Just so much language printed on heavy paper. It must be an advantage to have a lower centre of gravity, and being much less heavy I should not do so much damage were I to fall.

so many and so heavy

1297,000 results on the web

so much and so heavy

1985,000 results on the web

More popular!

I had no idea it was so heavy.
Your eyelids are getting so heavy... so heavy... so heavy... that you cannot keep them open.
No wonder the bag was so heavy.
It was so heavy hearing the music played to perfection.
Because nature is delicate, and we're so heavy
My baggage didn't seem quite so heavy anymore.
handed.
It weighs so heavy on you, Bruno.

It's hard to talk with so much heavy chewing to do.
Battalion says there's too much heavy fighting
They had the perfect culprit, a strange teenage boy that no one in town liked much and listened to heavy metal.
Mr President, ladies and gentlemen, I do not want to bring out quite so much heavy artillery here but concentrate my criticism on a technical question, namely Parliament's disappointment that it was not consulted on a major question.
You don't want to rock the boat with big solicitors by demanding payment for a junior member of chambers when the same solicitors bring the senior end so much heavy work.
I don't think we'll be taking too much heavy fire with this group.
Just so much language printed on heavy paper.
It must be an advantage to have a lower centre of gravity, and being much less heavy I should not do so much damage were I to fall.