Sleep Remedies for 7 to 8 hours of sleep?

In between my sleep I am tend to wake up for number of times. Due to these interruptions, I sleep less and that makes me sleep in the daytime. It gives me feel of drwsiness and whole day I feel restlessness into my body. I wish to know if there are some Sleep Remedies available which help sleeping in some effective way. Are there any side effects of these remedies? Would these medications help me in continuous 7 to 8 hours sleep?