I have several recommendations for my patients to maintain better sleep as they start getting older:
Try to keep a constant sleep schedule making sure that you are going to bed and waking up at the same times each day. This will help keep their biological circadian clock in a regular rhythm.
Get plenty of outdoor light exposure, as this will also help keep your biological circadian clock ticking at the right times.
Watch out for hidden and not-so-hidden sources of caffeine including: coffee, tea, medications, chocolate, sweets, etc.
Daily exercise, with a doctor’s approval, is also a great way to maintain a healthy sleep pattern.Keep the bedroom cool, dark, and quiet, and make sure to get a new pillow every year (for proper head and neck support) and a new mattress when your body tells you to(never go longer than about 8 years).