i am tossing and turning all night due to i drank a lots of coffee this morning

Your sentence is almost there. You've got the right idea! Here's how you can improve it:

"I've been tossing and turning all night because I drank a lot of coffee this morning."

Breaking it down:

• "due to" sounds a bit formal in this case. A simpler option is "because".
• "a lots of" is incorrect; it should be "a lot of".
• "this morning" indicates recent timing, which makes sense for your intended meaning.

So, the corrected sentence better matches natural English phrasing while conveying the same idea: that your coffee consumption earlier in the day resulted in difficulty sleeping at night. Keep practicing and refining your sentences - great job on expressing yourself clearly!