Occasional trouble staying asleep is quite normal and not necessarily a cause for concern. Sleep professionals like to use the "rule of threes" to figure out whether you should seek help. Consult with your doctor if the problem happens at least three times a week, with at least 30 minutes awake at night, and continues for at least 30 days.
Once you have established a sleep schedule, stick with it -- even on the weekends. You'll have the most restorative sleep when sleep is predictable. Getting enough quality sleep is critical to your health. Establish good sleeping habits for your entire family with these strategies, and you'll have more energy, be more alert and productive, and lead healthier and happier lives.