You can regulate your environment based on the weather. If it's humid, you might benefit from a de-humidifier. If it's dry, evaporative cooling. If the humidity

You can regulate your environment based on the weather. If it's humid, you might benefit from a de-humidifier. If it's dry, evaporative cooling. If the humidity outside is 'average' or 'comfortable', a cross-breeze will help a lot. If it's hotter inside than outside, set up a fan to pump air outside, crack one window from the bottom to let in cool air, and one from the top to let heat escape. As a last ditch measure, you can try filling a hot water bottle with ice water and sleep with your feet on that.