DeSoto parish is one of the first- if not the first- school system in the state to give iPads to all high school students.

Money was a big factor in the adoption of the iPads.

The devices cost $499.99 and last about 4 years. E-books average $15 apiece and are renewed every school year.

Traditional textbooks cost between $100-150 and last seven years.

The iPad path costs more, but administrators say they're more up-to-date and are interactive. Some textbooks incorporate video tutorials and movable 3D graphs.

When you talk to student its becomes clear that they're excited to use the tablets and may be more willing to power up the iPad than crack open the textbook. At North DeSoto High School, students say the tablets feel less like schools supplies and more like presents.

"They've said, 'It feels like Christmas' because you're opening the case, you're putting it in, you're opening the iPad," says teacher Jacob Ambrose.

Senior Louis Johnson bought a physical keyboard to help him write faster than he would on the touchscreen.

"I think it helps with taking notes," says Johnson. "I like that part."

Administrators say they're still discovering things about the iPad program.

"We're still new enough that we don't know how many are going to be lost [or] how many are going to be damaged," says Superintendent Walter Lee.

Another top concern is online safety. North DeSoto HS's wi-fi uses an internet blocker. The district erased certain apps like YouTube and disabled the iPad's camera.

The district already uses computers and smart boards. They say this is simply the next step.

"It's the way students learn," says Bart Weaver, North DeSoto HS Principal. "Are we blessed to have these iPads? Yes, but it's the way students learn is using this technology-rich environment. It helps us stay ahead of the curve."

Sleep experts say there are some downsides to mobile devices, like iPads. The light from iPads, laptops, televisions, and cellphones cal interfere with the melatonin- the chemical that regulates sleep and wake cycles.

The sleep clinic at LSU Hospital says they're seeing more kids come through their halls for treatment. Reasons vary, but sleep is important during the school year because it can affect learning and classroom behavior.

"It affects their memory, it affects, their creativity," says Dr. Lourdes DelRosso. "It affects their performance in school, and all of those things are important."

Doctors say you should shut off all electronic devices about an hour before bedtime.