Your sleeping environment and the bedding you sleep on are the most common reasons people get so hot when they sleep. This is because your core temperature drops a couple of degrees during the night and sheds heat into your surrounding environment.
Open windows – and doors – to encourage airflow and a cool draught through your bedroom. Draw curtains or blinds during the day to block the sun out and keep your room cooler at night. If you've got an attic, try opening the hatch. Hot air rises and this will give it somewhere to go.
The reason people “sleep hot” has a lot to do with design. Our core temperature drops by a couple of degrees during the night, shedding heat into the surrounding areas, and certain sheets and mattresses trap the heat and moisture around us.
Your Air Vents are Closed or Obstructed
If you have closed your air vents, or your vents are obstructed by furniture or upholstery, proper airflow is disrupted. This can most certainly cause some rooms in your home to be hotter than others while placing extra strain on your HVAC system.
But a hot bedroom can be one of the most frustrating. For most people, optimal sleeping conditions are between about 60° F and 68° F, and 40 to 60 percent humidity. Anything outside these ranges, experts say, and sleep quality plummets.
Some studies suggest that the discomfort of sleeping in a hot room can cause more frequent awakenings throughout the night and can disrupt restorative rapid eye movement (REM) sleep.
100% cotton sheets will make a difference to your night-time temperature. Invest in natural, wool-filled, cool bedding. As a hot sleeper, you may think the key to a cool bed is no bedding whatsoever. But if you opt for natural comforters, this can support your body's own thermo-regulation.
But in actual fact, fans don't cool down your room in the way that an air conditioning unit can. They do relieve some of the struggles of living in high temperatures, circulating air and making you feel cooler, but even the best modern fans won't actually lower the temperature of your room by themselves.
Food and Metabolism
If you just ate before bed, this could be the reason why you're sleeping hot. Your body's metabolism is still working hard to break down the food, even as you try to get to sleep. This natural process of digestion can cause the body's core temperature to rise.
This is usually due to absorbed heat. If you are surrounded by concrete , buildings, pavement and many other solid types of building materials it will be hotter. These materials absorb heat and release it at night.
Heat-related illness can range from mild conditions such as a heat rash or cramps to very serious conditions such as heatstroke, which can kill. Overexertion in hot weather, sun or bushfire exposure, and exercising or working in hot, poorly ventilated or confined areas can increase your risk of heat-related illness.
But why does being out in the heat bring on feelings of drowsiness? The reason for this lethargy is simple: Your body is working hard to keep you cool, and this extra labor makes you feel tired, said Dr. Michele Casey, the regional medical director at Duke Health in North Carolina.
Cool a whole room by hanging a wet sheet in front of an open window. The breeze blowing in will quickly bring down the room's temperature.
You might get hot when you sleep due to a warm bedroom, thick pajamas or bedding, having caffeine or exercising too close to bedtime, stress, being pregnant or going through menopause, being ill, medication, or having an underlying medical condition.
Using two fans to cool down a room rapidly. Beatrice Flores, a home care expert from Living Pristine, recommends placing your two fans in opposite windows to create a cross-breeze. 'This will direct the airflow from both fans across the room, cooling the air quickly,' she says.
Use a bucket of ice
According to the GHI, placing a bucket of ice in front of a fan as a homemade AC unit is just as effective. 'As the air passes over the ice it will be chilled and will circulate refreshingly cold air around the room,' they explain.
Air Circulation: Circulating the air in your bedroom with a ceiling fan doesn't merely feel pleasant, it's also practical. In the winter, a fan can help distribute warm air evenly, while in the summer a ceiling fan can help ensure you and your family are comfortable no matter how hot it may be outside.
The Egyptian Sleep Method is pretty simple: sleepers wrap themselves in a wet towel when it's too hot to slumber comfortably. This trick supposedly dates back to ancient Egypt when they didn't have the modern conveniences to help them with the high temperatures.