Forehead cooling: http://www.scientificamerican.com/article/putting-insomnia-on-ice/
I tried sleeping with a damp slow-release sponge on my forehead. I’ll need to try more nights, but my sleep quality may have been better.
Sleeping a cooler room also seems to be recommended, 18°C is not unusual.
http://www.webmd.com/sleep-disorders/features/cant-sleep-adjust-the-temperature
Forehead cooling: http://www.scientificamerican.com/article/putting-insomnia-on-ice/
I tried sleeping with a damp slow-release sponge on my forehead. I’ll need to try more nights, but my sleep quality may have been better.
Sleeping a cooler room also seems to be recommended, 18°C is not unusual.
http://www.webmd.com/sleep-disorders/features/cant-sleep-adjust-the-temperature