Drink little water during the day but at night I drink about 2 litres while chilling out. Is this good or bad?

Water. I believe on a usual day we need 1 liter of water per day and on very very hot days we need 2 to3 liters per day, drinking too much water can lead to water intoxication which can cause confusion, seizures, coma and death due to low sodium etc at night drinking so much water can keep you up, especially if you are gulping down huge quantities of water.