Light
Notice bright screens and outdoor light close to bedtime.

Sleep is a biological rhythm influenced by light, timing, stress, temperature and the expectations we bring to bed. A calmer environment can support, but not guarantee, better rest.
Notice bright screens and outdoor light close to bedtime.
Look for a wake time that can remain reasonably consistent.
Give unfinished work a written place before turning down the room.

Persistent snoring, breathing pauses, severe daytime sleepiness, prolonged insomnia or sudden changes deserve discussion with a healthcare professional. Sleep concerns can have medical and psychological causes.