Light therapy (phototherapy) with a source of full spectrum light or a viewer portable, usually 10,000 lux for 30-90 minutes about an hour after waking up. To avoid the high luminosity in the afternoon may also help. In addition, a system simulator of dawn with this kind of brightness could help to advance the start/end time of the circadian rhythms of the patient. Although not yet confirmed the need for a source of full spectrum light with a spectrum reduced to reach 10000 lux is sufficient.
Cronoterapia, that is to initialize the circadian clock by going to bed several hours "before" or "after" every day during a test period.
A small fee (~1mg) of melatonin one hour before bedtime can be of help to establish appropriate patterns of sleep, especially used in conjunction with the light therapy at the time of spontaneous awakening desired. The side effects of melatonin can include discomfort in the sleep, nightmares, daytime sleepiness and depression. You still have not described the long-term effects of melatonin, and its production is not regulated. In some countries, the hormone available only through prescription.
There are some assertions in the sense that large doses of vitamin B12 may help normalize your sleep cycles, but still not confirmed the effectiveness of this treatment.
Optional treatment considerable promise is Ramelteon, a drug recently approved that acts in a manner similar to a melatonin synthetic. Production of Ramelteon is as regulated as a drug on medical prescription, thus avoiding the problems of purity and varying doses of melatonin supplements.
The Modafinil is a drug approved in the united States for the treatment of sleep disorder shift work, which shares some features with the SFSR, and a large number of doctors have prescribed to patients of SFSR.