Looking on the internet deeply has found these results:

sleep a lot is the most popular phrase on the web.

sleep much 1469,000 results on the web	sleep a lot 1612,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
But I sleep much better when I catch the bad guys. Of course she didn't sleep much. Well, when you do go to sleep, I find I sleep much better with the door locked. I just didn't sleep much last night. No, I just don't sleep much. I just didn't sleep much last night. I didn't get sleep much last night. Yes. I don't get to sleep much.	They sleep a lot at that age. You're not going to sleep a lot, you're going to be running errands nonstop. I know you hate when I tell you this, But you should sleep a lot better if you had some exercise Besides, if you're going to be working with us, I'll sleep a lot easier knowing that you can handle yourself... He likes to drink wine and sleep a lot. Some old people sleep a lot before they die. Babies sleep a lot, Pam. You know, with ADHD meds people tend to sleep a lot during withdrawal.

sleep much

1469,000 results on the web

sleep a lot

1612,000 results on the web

More popular!

But I sleep much better when I catch the bad guys.
Of course she didn't sleep much.
Well, when you do go to sleep, I find I sleep much better with the door locked.
I just didn't sleep much last night.
No, I just don't sleep much.
I just didn't sleep much last night.
I didn't get sleep much last night.
Yes. I don't get to sleep much.

They sleep a lot at that age.
You're not going to sleep a lot, you're going to be running errands nonstop.
I know you hate when I tell you this, But you should sleep a lot better if you had some exercise
Besides, if you're going to be working with us, I'll sleep a lot easier knowing that you can handle yourself...
He likes to drink wine and sleep a lot.
Some old people sleep a lot before they die.
Babies sleep a lot, Pam.
You know, with ADHD meds people tend to sleep a lot during withdrawal.