1: Sort out your bedroom: Even if the rest of your house is full of toys or washing try not to let it sneak into your bedroom. Make it as tidy and clean as you can and if you're planning on decorating it any time soon, don't choose loud or bright colors.
2: Chill Out: Also make sure your bedroom is well ventilated and completely dark. The best temperature to sleep at is between 60 degrees (f) and 65 degrees (f) and even slight changes to this can stop you from dozing off or wake you up at an unreasonable hour.
3: Don't use your bed for anything other than sleeping: It's not a good idea to use your bed to sort out bills, make shopping lists or argue. Let your body recognise that when you get into bed it's time for sleep.
4: Stay regular: Try to go to bed and wake up at the same time every day - kids and housework permitting - even on the weekends. If you oversleep one day it will stop you from getting to sleep another and your body clock can be reset really easily.
5: Set a bedtime ritual: Choose one or two things that you know you can do every night, like drink a herbal tea or play relaxing music. This will teach your body that when you start doing these things it means you need to sleep.
*Better Sleep Tips found here: http://www.goodtoknow.co.uk/health/175319/Getting-better-sleep