I assume the main reason I sleep so little now is due to the head injury & now I've gone against convention & stopped trying t go back t sleep when I wake up, I feel fantastic & it gives me so much more life & time t chat t you lovely people & hopefully share my wisdom ;o)
If I get up when I wake up naturally I feel great; if I go back t sleep, when I wake up again I feel cr4p & usually doze back off again & again & just don't want t get up.
I get criticised for this by my family - it's just not normal (but what is & besides we're not normal we've had something happen to us that ' normal ' people can't comprehend.
Does everyone find they don't need a great deal of sleep now or have problems sleeping & if U have problems sleeping & wake up, go back t sleep, wake up, go back t sleep etc etc - try getting up when U wake up & as I've said in a different post I can't recommend a 20 minute power nap enough !!!
( But try not t got too far over the 20 minutes cos then U go into a different stage of sleep & U don't feel so refreshed when U wake up ;o)