For some people, getting eight hours of sleep at night is next to impossible. Sometimes it feels like when it's time to sleep, your body won't let you, and when you need to be awake, an afternoon latte is the only thing keeping you from conking out at your desk.

Don't blame the afternoon caffeine for your late-night insomnia. Here are some surprising reasons you probably can't sleep:

• It's too quiet: Believe it or not, if your environment is too quiet, random sounds can jar you out of your sleep – like a toilet flushing or a car outside. Sleeping with a fan or white noise machine can help drown out light sounds in your ultra-quiet environment so you can get undisturbed rest.
   
• Too much light: If your curtains are too sheer or your nightlight is too bright your internal production of Melatonin will seriously be affected – and you need Melatonin to actually make you fall asleep! 
   
• Your alarm clock: Those glowing digits screaming how little time you have to actually sleep before work the next morning can cause major anxiety and prevent you from relaxing enough to actually fall into dreamland. Quick fix – turn your alarm clock away from you so you can't see the digits!
   
• TV: Catching up on your favorite shows before bed or even the news can seriously mess with your sleep. Watching a program that elevates your adrenaline even 30 minutes before heading to bed can wire your brain and make it almost impossible to relax. If you really want to watch something before bed, pick something that you have no actual interest in ...  which defeats the purpose, right?! Best bet ... give yourself an hour of no TV before catching your Zzzs.
   
• It's too hot or too cold: Optimal sleeping temperature is 65 - 75 degrees F, depending on your preference. Best bet, stick with cotton sheets and blankets to optimize air flow and prevent overheating, while still keeping you warm and comfortable.
   
• The color of your bedroom: Sure those bold colored walls look amazing, but they are also over stimulating. Bedrooms should be painted in soft subdued hues for a relaxing environment