Did you mean "soporific?"
If so then..... "Hopefully the driver next to you on the long stretch of highway at 3 o'clock in the morning is not soporific."
If you don't mean soporific then I couldn't find the definition. 🤔
Thursday's word of the day comes to you early so that you have ample time to formulate it into a sentence ?
Soporific. .......Please excuse the earlier misspelt word of the day. It has been corrected above.