But where exactly is your thermostat supposed to be? According to The National Sleep Foundation, the best sleep temperature for a good night’s rest is between 60 and 67 degrees Fahrenheit. However, this isn’t always so easy to achieve during the summer. If you’re wondering what to do when it’s too darn hot to sleep, it’s just a matter of making some simple changes. From what you sleep on to what you sleep in, even making just a few minor adjustments can keep your body temperature from rising. While some of these changes may require a small investment, others cost very little or may even save you some cash in the long run. Changing the filter is easy and depending on the model of your air conditioner or HVAC system, you can probably change it yourself. But if you aren’t sure, it’s best to call a professional. However, you shouldn’t wait for the room to become uncomfortably hot or for the air conditioner to malfunction before changing the filter. This needs to be part of your regular home maintenance routine. For the most part, basic air filters should be changed every 90 days in a home that doesn’t have pets or in a vacation home that doesn’t have a large number of occupants coming and going. If there are pets, the filter should be changed every 60 days. Changing the filter can also save you money on repairs in the long term. If changing the air filter doesn’t cool down the temperature of the room, it’s probably time to call an expert for help. Place a box fan underneath an open window facing outwards so it removes the hot air from your bedroom, pushing it outside. If it’s a cooler night, but the bedroom is still hot, you can also keep the box fan in the windowsill so it circulates cooler air from the outside in. RELATED: The 10 Best Fans to Keep Your Home Cool, According to Customer Reviews How do they work? Graphite and copper gel layers absorb heat and transfer it away from the body, while the special cooling foam promotes airflow and wicks away moisture for a cooler night’s sleep. RELATED: The 12 Best Cooling Weighted Blankets for Hot Sleepers, According to Reviews RELATED: The 10 Best Cooling Pillowcases to Keep You Comfortable and Sweat-Free All Night Long