Dr. Elliot Reeve

Stale air and night noise can fragment sleep even when your routine is solid. Evidence points to practical home changes, but still with clear uncertainty.

Late-day caffeine can still reduce sleep quality for many people. Evidence points to staged timing trials, not blanket rules, as the most useful path.

Home sleep tests can identify likely obstructive sleep apnoea, but they do not replace clinical judgement or reliably rule out every sleep disorder.

Bedroom temperature shapes sleep through the body’s cooling rhythm. Here is what evidence supports, where comfort matters, and what to adjust tonight.

Social jet lag is the gap between weekday and weekend sleep timing. Evidence points to steadier wake times, not a stricter or joyless routine.

Night-time urination can fragment sleep, but it is often treatable once the pattern, bladder signals, and sleep disruption are separated.

Evening light can delay sleep by shifting the body clock. The useful fix is not screen panic, but brighter mornings, dimmer nights, and steady timing.

Chronotype shapes when sleep comes easily. The goal is not to force a new identity, but to reduce social jet lag where it harms sleep and health.

CPAP works best when it is tolerable. Here is what the evidence says about masks, humidification, oral devices, and follow-up for sleep apnoea.

Caffeine can disturb sleep long after the buzz fades. A sensible cut-off is earlier than many people think, especially when the dose is high.