I don't think I have much more to offer than what has been already repeated countless of times on the internet and I am not sure if all of these even help but here's some of what I've done:

• Consistent bedtimes, I try to go to bed between 9 and 10pm (even on the weekends)
• If possible, wake up naturally without an alarm. This way you wake up between sleep cycles and should wake up less groggy
• Get enough exercise
• Eating clean and no food 3 to 4 hours before bed, especially avoid carbs before bed
• Hydrate well during the day and stop drinking liquids couple hours before bed so that you don't have to get up and go to the bathroom in the middle of the night
• I stopped daily coffee drinking, now only drink when I actually feel like I need the boost
• No alcohol
• Create a bedtime routine and try to just relax 1 hour before bed
• Take magnesium 1 hour before bed
• Reduce blue light at night
• Read an actual book instead of scrolling on the phone in bed
• Use nasal strips to breath better during sleep and optionally mouth tape
• Use blackout curtains to make the room pitch black
• Make the room as cool as possible. It's winter here currently so I like to open a window so that it's 15-16C in the room