Changes in Sleep Patterns
Many people with seasonal affective disorder report that they suffer from hypersomnia and insomnia during fall and winter. This means they have sudden changes in the sleep patterns, which would range from insomnia or no sleep at all to hypersomnia or sleep all the time. Indeed, this is not an uncommon symptom of this health issue because light patterns are also changed during this period of the year. More specifically, you might often wake up during the night or feel tired even after sleeping for 8 hours. [3]
