Still Tired After a Whole Night's Sleep? On the Plateau, Morning Headache and Dry Mouth May Be More Than "Poor Sleep": A Home Guide to Night-Time Oxygen Use
Many people who come to Lhasa share the same story: they go to bed early, yet wake repeatedly through the night, and in the morning their head feels heavy and their mouth is dry, as if they had not really slept. Long-term residents of the plateau often blame morning headache and daytime drowsiness on "getting old" or "sleeping badly". In fact, low oxygen during sleep may be the overlooked link.
1. Plateau sleep: why it never feels deep
The air at altitude carries less oxygen, and the body's breathing regulation becomes unstable during sleep. Many people, after falling asleep on the plateau, develop periodic breathing: the breath slowly deepens and quickens, then fades, and may pause briefly, over and over. This pattern is common, especially noticeable in newcomers, and most people gradually adapt over time. But it keeps deep sleep shallow and fragmented, showing up as vivid dreams, frequent waking, morning headache, dry mouth, and daytime fatigue. A cold, heavy fatigue, alcohol, or sleeping medication can make all of it more pronounced.
2. When to take "bad sleep" seriously
An occasional bad night is nothing to panic about, but these signals suggest you may need to act: morning headache and dry mouth that persist, with daytime tiredness that clearly affects daily life; a fingertip oximeter showing night-time or morning readings that stay low; or, alongside these, loud snoring, witnessed breathing pauses (waking up gasping), or blue-tinged lips. The last two situations warrant a hospital visit to rule out sleep apnoea and related problems; do not simply tough it out as an "altitude reaction".
3. Night-time oxygen: what households can and cannot do
The core of night-time oxygen is not "more is better" but steady, humidified, and safe.
1. Flow and duration: whether you need oxygen at night, at what flow, and for how long should be decided by a doctor based on daytime symptoms, oximeter readings, and necessary examinations. Patients with COPD, cor pulmonale, or impaired heart function especially must not adjust the flow upward on their own.
2. Do not skip humidification: a continuous flow of oxygen through the nose all night dries the airways faster than daytime use, causing crusting or nosebleeds, so fit a humidifier bottle, change the water daily, and prefer distilled or cooled boiled water.
3. Machine placement and noise: put the unit on a stable surface beside the bed, leaving clearance at the air intake and exhaust; noise-sensitive households should adjust settings in advance, and never let the tubing kink.
4. Safety is the bottom line: you are less aware of trouble while asleep, so open flame is strictly prohibited in the oxygen environment, and high-power heaters such as electric blankets must be kept away from the nasal cannula; steel cylinders must be secured, and check the fittings before sleep.
5. Power cuts and backup: winter power interruptions do happen on the plateau, so households needing continuous oxygen should plan a backup power supply and tell their service provider about the equipment's power needs in advance.
4. Let the oximeter give you a night-time reference
Keep a fingertip pulse oximeter at home and take a reading before sleep and after waking, and write them down. The trend matters more than any single number: if morning readings are consistently well below bedtime readings over several days, or an overnight wearable monitor (if available) shows sustained lows through the night, bring the log to a doctor for assessment.
5. Frequently asked questions
Q: I have no chronic illness, I just sleep badly. Do I need oxygen at night?
A: Do not treat oxygen as a "sleep aid" first and see what happens. Start with adjustments: less alcohol in the evening, avoid heavy meals, improve bedroom humidity, and keep moderate daytime activity. If things still do not improve, take your oximeter log to a doctor and decide after assessment.
Q: The concentrator runs loudly all night and disturbs the family. What can I do?
A: First rule out faults and placement problems: keep the unit level, off resonant surfaces near the bed, with the intake and exhaust unobstructed. If the noise persists, call service to inspect the fan and damping parts. Do not move the machine into a closed bathroom or similarly unsuitable spot just to muffle the noise.
Q: Can a portable concentrator or a steel cylinder be used overnight?
A: It depends on the equipment's design. Home concentrators can run for long periods, but follow the manual to ensure ventilation and heat dissipation; portable models are mostly designed for intermittent use, so continuous running must be confirmed against the rated duty; for overnight cylinder use, keep it secured, check for leaks, know your remaining supply, and replace it before it falls below a safe margin.
Get these points right and "plateau drowsiness" does not have to be endured by sheer willpower. Xizang Kuyang maintains a local warehouse and service network in Lhasa with 48-hour response, offering on-site installation, filter replacement, and annual inspection. For any questions about home oxygen plans or equipment selection, call 15608996945.
References: Science China's popular-science articles on plateau health and home oxygen therapy; YY 9706.269-2021 (safety and performance requirements for medical oxygen concentrators); GB 50751-2012, Technical Code for Medical Gas Systems.
Images are illustrative and may differ from actual product appearance. This article is a general science summary and does not constitute medical advice; follow your doctor's instructions for any oxygen therapy plan.