Sleep
"It is in vain that you rise up early and go late to rest, eating the bread of anxious toil; for he gives to his beloved sleep." - Psalm 127:2, ESV
7-8 hours is recommended for your body to repair itself and to receive full REM sleep.
Consult a TMJ specialist if you are having trouble snoring or sleeping.
Use only warm, amber, or yellow lights before bed. You can purchase LED amber light bulbs for light fixtures.
Turn on night mode on your smart TV, phone, tablets, and other electronic devices if you have to use them before bed.