What do you need:
To realize how much time of your life you spend sleeping
To realize what can you do with 3 more hours a day
To realize that what you need is more energy, not more sleep time
Step 1: To optimize sleeping time
You can start by leting your sunglasses at home, opening the windows as soon as you wake up and if you spend to much time indors, buy a daylight lamp, the ones that people with Seasonal Affective Dissorder use.
Step 2: The not so fun part
But dont drink or eat two hours before going to bed, so the body can rest without worrying about digestion.
Also (told you this was the not so fun part) avoid coffe and alcohol.
If you find life without coffe and alcohol and with 3 or 4 more hours a day is worth living, keep reading.
Step 3: Optional stuff
30 minute phisical activity a day make you sleep better and have more energy.
Also, if you can get a 15 minute nap, you can save easily 2 hours night sleep for each 15 minutes' nap.