Sleepbot/Sleepcycle are two great apps that will analyze your sleep to help you wake up feeling refreshed.

Sleepbot is an Android app that helps you figure out what's going on while you're sleeping. The app analyzes your movement, sound, and duration of sleep, and feeds you back data to help you sleep better. There's also an automatic alarm to wake you up and reminders for when to go to sleep.

Sleep Cycle alarm is an iPhone app that offers similar features to Sleepbot. Sleep cycle analyzes your sleep and helps you wake up while you're in the lightest sleep. This ensures you wake up feeling rested and relaxed.

Price:

Sleepbot (Free) Sleep Cycle Alarm ($1.99)

Available for:

Sleep Cycle Alarm: iPhone

Sleepbot: Android