As mentioned by you, your weight is 85 kg and ht. is 5.11ft.which is around 12 to 15 kg more than your ideal weight should be.Obesity is one of the causes of discomfort and sleepless nights.So try to keep check on your weight.Avoid oily spicy and junk food.Have dinner 2 hours before going to bed.Must walk for half an hour after dinner.these are general suggestions which can help you.
Next Steps
For further assistance you should visit an Ayurvedic doctor.
Health Tips
By the time you can take Tablet Triphla guggul 2 tab at bed time.