sleeping disorders and s.a.d

i find this forum can be more beneficial than a visit to my gp( considering my gp did not know about light therapy),and what i am interested in is how s.a.d effects people's sleep patern. i know the normality for s.a.d sufferers is that they sleep a lot during winter and i know from reading "winter blues" that the reverse could also happen.
sometimes in different times in the year i probably have the tendency to blame everything on s.a.d but since the start of december it has been a totally different ball game!. it feels like i do not have a bodyclock and my mind/body does not have a cycle of getting tired at night and awake in the morning. it started of with broken sleep but now i am at the stage although i feel tired that i cannot get to sleep until i am exhausted which can be about four or five oclock in the morning, and considering i get up at work at six oclock i am totally shattered all day which i think leads to mental problems along with catching the cold and flu because i feel run down. incidently in the summer when its scorching hot i can survive on four or five hours sleep and feel great then a couple of days(maybe even a week or two) after a hot spell i can sleep for ten hours easy and never enjoy sleep as much in my life. but come december i feel like a total insomniac.
i was wondering how many people on this forum (if any) have what kind of sleeping disorder related to s.a.d.
any feedback would be hugely appreciated.

Sorry correction to above message, it starts early october - wishful thinking me thinks!!

Me x

thank you very much for the info and the replies folks.

i have just returned from the doctors and he very reluctantly prescribed me temazepam to get to sleep. the doctor said that they are highy addictive and he does not want to add to my problems, so he has given me fourteen to last me the rest of the winter and to use them wisely. he originally wanted to prescribe me amyltriptaline(sp) to get to sleep because they are an anti-depressant as well. i did visit a s.a.d clinic last year and the specialist recommended i take anti-depressants along with light therapy. he sent a letter to my gp explaining this and my gp wants me to take them. but i am scared to take anti- depressants.
also since december this insomnia had become unbearable so on the odd occasion i bought myself night nurse to help me get to sleep. the night nurse did help me get to sleep but i also woke up about 3:30 am, how crazy is that considering both of you wake up about the same time.
p.s thanks again for the replies and i hope the rest of the winter goes as well as it can for the both of you.

I know this one:-

Night Nurse is an over the counter medication that 'relieves tickerly cough, sore throat, runny nose, headache, shivers and so aids restful sleep, all in one little measure - marvellous , the one in one night time cold treatment by B......s'.

I know Im sad. I remember, and obviously quoted, the advert from when I was a kid 35+ years ago. Mum never bought it though.

So its not at all what you think SGL.

Me x