Sleep 7–9 hours
What it is
Fixed wake time, dark cool room, no screens in bed, caffeine before 14:00, alcohol wrecks the second half of the night.
When to check with a professional
Loud snoring with daytime sleepiness, or insomnia lasting over 3 months, is worth a family-doctor visit (sleep apnea, CBT-I).
Sources
- Sleep duration recommendations — National Sleep Foundation
- Sleep regularity is a stronger predictor of mortality than duration (UK Biobank, n=60,977) — Windred et al., Sleep 47(1)
Compiled with AI assistance from the public sources listed above. Not yet reviewed by a clinician — check anything important against the source, with Tipat Halav or with your doctor.