Water has a specific heat capacity of about 4.2 Kilojoules per kilogram per degree Kelvin, so it would take about 6 Kilowatt Hours of electricity to heat 100 Litres of water from 15 degrees centigrade to 65 degrees centigrade. As a standard immersion heater is 3KW, so it would take 2 hours to heat 100 Litres of water.
Drinking a large amount of carbonated drinks at bedtime can also cause hiccups, as the air in these drinks can distend the stomach. Consuming a large amount of alcohol before going to bed is another possible cause of hiccups during sleep. The excessive amount of alcohol can cause the stomach to distend.
What causes you to moan in your sleep? Answer Wiki. When you are in REM sleep, aka the dream part of sleep, your muscles stiffen up as if to keep you from re-enacting your dreams. Therefore, you may be yelling, or speaking in your dreams, but in reality, your muscles cant move to form the words, which results in a sort of moaning sound.