About 90% of heart attacks occur early in the morning & it can be reduced if one takes a glass or two of water before going to bed at night.
I have Read this from another site and yeah this is why Water is very important before Sleeping .
1. 1 Glass of water after waking up - helps to activate internal organs..
2. 1 Glass of water 30 minutes before a meal - helps digestion..
3. 1 Glass of water before taking a bath - helps lower your blood pressure.
4. 1 Glass of water before going to bed - avoids stroke or heart attack .
You can check details on google.
Best that you added the Link here so We can just click and check easier.