The Mayo Clinic found that people sleep better in a quiet, dark and cool environment.
The ideal room temperature at night is between 18-20°C / 65-68°F
Chronic sleep deprivation suppresses the immune system according to a 2017 study commissioned by the University of Washington Health Sciences.
Sleeping in a hot environment has been shown to increases wakefulness and reduce deep sleep REM.
Deep sleep is important for feeling refreshed and recovered.
Mattresses and bedding can trap heat throughout the night. This buildup of heat can cause you to toss and turn in an effort to cool down. It can also cause your body to sweat, which is un-hygienic and uncomfortable.
A drop in your core temperature triggers your body’s sleeping systems. You must cool down at night in order to achieve deep sleep.
Lowering the temperature enriches your rest with less interruptions
Sleep onset requires a drop in core body temperature.
UniSA researchers have discovered that a failure to do this and have your body regulate a cool periphery is the primary cause of insomnia.
Disturbed sleep directly correlates to poor cognition.
Prolonged uninterrupted sleep is vital and also a better health measure vs. accumulated sleep time between waking moments.
Getting to the core of insomnia by Geraldine Hinter
The human sleep-wake cycle reconsidered from a thermoregulatory point of view.
The effect of afternoon body heating on body temperature and slow wave sleep.
Ambient temperature and obstructive sleep apnea: effects on sleep, sleep apnea, and morning alertness.