None of us could ever hope to answer your sleep disorder question. It could be mattress, pillow, partner, lack of partner, room temp, blanket texture, mental condition, apnea, severe depression, moderate depression, worry about things, muscle pain, twitching, restless leg syndrome, iron deficiency anemia, other forms of anemia, caffeine addiction, caffeine withdrawl, subconciously indicating you sleep too much, not sleeping enough, too many drugs, not enough drugs, too much running, not enough running

for fucks sake get a sleep study done