List of Sleeping Disoders That Are Uncommon

We've all heard of insomnia, and you may have even heard of hypersomnia, or sleeping too much. However, the list of sleeping disorders extends far beyond these two forms into realms that are much more bizarre. Here are four of the oddest sleeping disorders.

1) REM Behavior Disorder - sufferers do not experience the paralysis normally associated with REM sleep, which causes them to act out their dreams. Occasionally, the sleeper will harm himself or his sleeping partner.

2) Restless leg syndrome - this syndrome is usually most severe when the patient sleeps. It induces a powerful urge to move one's legs or arms to alleviate discomfort or strange sensations.

3) Somniloquy - also known as "sleep talking," somniloquy causes the sleeper to speak out loud. The talking can range from basic sounds to full-fledged speech.

4) Sexsomnia - causes sufferers to engage in sexual behaviors while asleep. Sexsomnia is considered to be closely related to somnambulism, or sleepwalking.