It's that time of year again to "spring forward" an hour.

Daylight Saving Time begins bright and early Sunday at 2 a.m. Most of the country will move their clocks forward that morning for the time change.

Doctors say that hour lost doesn't impact our sleep cycles too badly.

"The body is going to respond to the sun more or less, and so having an hour shift would not affect people's sleep for more than a day or two,” said Gundersen Sleep Specialist Daren Tobert.

Daylight Saving Time is also a great time of the year to check out your smoke detectors. It's recommended to change the batteries of your smoke detectors and CO detectors at least once a year. Firefighters say a good rule of thumb is to change those batteries whenever your clocks go ahead or back. They also suggest changing both smoke and CO detectors at the same time every year.