I find the optimum sleep environment is a 27C/80F room with no blankets and an overhead fan on low
The idea that the optimum room temp is 19C - 22C (66F - 72F) gets trotted out all the time, but what people fail to mention is that is considered "ideal" with blankets and pajamas. Dive deeper and you will find that the caveat is that underneath that layer of blankets and clothing, the body is encased in a microclimate of temps between 31C - 35F (88F - 95F)
I find myself constantly waking up to adjust blankets/sheets when I use them. I go to sleep comfy, wake up sometime in the middle of the night hot and throw them off, and then later wake up again cold and put them back on
With an elevated room temp, shorts/short sleeve, and no blankets I fall asleep and stay asleep through most of (if not all of) the night. The only downside is it takes slightly longer to fall asleep, but the upside of sleeping through the entire night is worth it
Disclaimer: This is not medical advice, I am not a trained doctor nor sleep specialist. Consult your doctor before making any alterations to your sleep environment. This may or may not work depending on body mass, medications, age, sex, or other factors
Thank you