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.
A sleep specialist will likely also try to help you get to the root of your insomnia (if there is one). Many of us can recall the occasional sleepless night when stress kept us tossing and turning. But there are a number of other causes of insomnia. Here's a look at the few of the most common. Chronic Pain. Any condition that leaves you in discomfort can understandably disrupt your sleep. Arthritis, low back pain, acid reflux, fibromyalgia -- these and many more painful conditions can keep you up at night.