318 Highway Lodging Altitudes: Where to Sleep to Avoid Altitude Sickness
Bottom line: The most effective way to beat altitude sickness on the Sichuan-Tibet Highway is not medicine — it is sleeping low. The safe lower-altitude overnight towns are Luding (1,330 m), Kangding (2,560 m), Yajiang (2,570 m), Batang (2,580 m), Bomi (2,725 m) and Nyingchi (2,980 m). Simply remove the high-altitude spots — Litang (4,014 m) and Zuogong (3,750 m) — from your sleep list, and you halve your risk of serious symptoms.
Most people blame daytime mountain passes for altitude sickness. In reality, the throbbing headache and sleepless night usually come from sleeping above 3,500 m. Passing through high altitude by day is manageable; lying still in an oxygen-poor room for eight hours is not. This guide tables every major overnight town from Chengdu to Lhasa and tells you which to keep, which to swap, and how to book smart.
1. Overnight altitude chart (Chengdu to Lhasa)
| Stop | Altitude (m) | Risk | Notes |
|---|---|---|---|
| Chengdu | 512 | None | Start; rest up |
| Ya'an | 640 | None | Expressway supply point |
| Luding | 1,330 | None | Low and restful |
| Kangding | 2,560 | Low | Old or new town both fine; mild symptoms possible |
| Xinduqiao | 3,300 | ⚠️ Moderate-high | Great photography town, but sleep-sensitive people should swap to Yajiang |
| Yajiang | 2,570 | Low | Only ~1 hour from Xinduqiao; strongly recommended swap |
| Litang | 4,014 | 🔴 High | Avoid overnighting unless already acclimatized |
| Batang | 2,580 | Low | Last low town in western Sichuan — sleep here |
| Mangkam | 3,875 | 🔴 High | First town after entering Tibet; rest early |
| Zuogong | 3,750 | ⚠️ High | No lower option on this stretch — manage carefully |
| Bangda | 4,120 | 🔴 Very high | Pass-through only; do not sleep here |
| Basu | 3,260 | ⚠️ Moderate | Acceptable; most travelers react mildly |
| Rawok (Ranwu) | 3,960 | 🔴 High | Great scenery but high; avoid if sleep-sensitive |
| Bomi | 2,725 | Low | Low-altitude oasis amid forests — strongly recommended |
| Tongmai | 2,070 | Low | New bridge era; small stays available nearby |
| Nyingchi | 2,980 | Moderate | Relatively high oxygen; most adapt fine |
| Gongbo'gyamda | 3,400 | ⚠️ Moderate-high | Few sleep here; most push on to Lhasa |
| Lhasa | 3,650 | ⚠️ Moderate-high | Ironically a hotspot for symptoms — rest 1–2 days |
2. Three high-altitude sleep traps and their perfect swaps
Trap 1: Overnighting at Xinduqiao (3,300 m)
Xinduqiao is famous for photography, and many guides suggest sleeping there for dawn light. But at 3,300 m it is high for a first visit — first-timers should stay in Yajiang (2,570 m) about an hour away, and simply return to Xinduqiao next morning for the shots.
Trap 2: Overnighting at Litang (4,014 m)
Known as the "highest city", Litang deserves a daytime visit — but not an overnight stay. The right move: spend 2–3 hours exploring, then continue to Batang (2,580 m) or Yajiang to sleep. The Litang–Batang drive is about 190 km / 3 hours on a mature road, and buys you one good night.
Trap 3: Overnighting at Zuogong (3,750 m)
Between Mangkam, Zuogong and Basu there is simply no low-altitude town, so Zuogong is almost unavoidable. Manage it: lie down and observe for an hour before showering or eating; book a hotel with diffuse oxygen; if the headache is clear, visit the local clinic or oxygen bar.
💡 Universal formula: the higher the pass you cross by day, the lower you should sleep that night — e.g., after a 4,000+ m pass, sleep below 3,000 m.
3. Why "sleeping low" is the gold standard
- Every 1,000 m of altitude cuts air pressure by roughly 11%, and oxygen partial pressure with it; at 4,000 m the oxygen is about 60% of sea level.
- By day your body compensates; at night, rest makes you more sensitive to hypoxia — hence headaches, insomnia, chest tightness and waking gasping. This is why altitude sickness peaks at night.
- Years of guiding experience converge on one conclusion: overnight altitude affects sickness more than daytime pass altitude. Priority when booking: altitude < oxygen supply < price < view.
4. Booking and check-in rules that actually help
- Filter for "oxygen rooms / diffuse oxygen" when booking — high-end options in Batang, Bomi and Lhasa often have in-room concentrators.
- Two absolute don'ts on arrival day: no shower (hot water boosts circulation and bathroom hypoxia), no alcohol and no heavy meals.
- Carry a cheap pulse oximeter: if SpO₂ stays below 85% with a headache, don't tough it out — go to a clinic or descend.
- Let the room breathe: many symptoms worsen in sealed heated rooms; air the room 10 minutes before closing the windows.
- Alternate climb and recover days: Luding → Kangding → Yajiang → Batang → (Mangkam/Zuogong) → Basu → Bomi → Nyingchi keeps your body on a lower, recoverable profile.
5. Budget vs comfort playbooks
| Style | Strategy | Reference price (off-season) |
|---|---|---|
| Budget | Chain hotels or guesthouses in Luding/Yajiang/Batang/Bomi; one rough night at Zuogong/Basu | 100–200 RMB/night |
| Comfort | 4-star or boutique stays with oxygen in Kangding/Batang/Bomi/Nyingchi | 250–450 RMB/night |
| Premium | Sleep low all the way + oxygen rooms; oxygen-supplied 5-star in Lhasa | 500–900 RMB/night |
6. FAQ
Q1: Is sleeping in Litang really that bad? A: Not dangerous — just unpleasant. Fit young travelers usually only sleep poorly; but seniors, kids and those with underlying conditions genuinely shouldn't. Avoid it when you can.
Q2: Why do so many people stay at Rawok (Ranwu) at 3,900+ m? A: For dawn light on the lake and Laigu Glacier. The trade-off: bring oxygen, or catch the lake on a daytime Bomi round-trip instead.
Q3: Is a hot shower really forbidden at altitude? A: On the day you arrive at altitude, yes — especially hot water in a sealed bathroom. After 2–3 days of adaptation, a short shower is usually fine.
Q4: I still have a headache in Lhasa. Should I leave? A: Lhasa at 3,650 m gives many people two days of symptoms — normal. If your oxygen is fine and you can eat, rest flat for a day; seek a doctor if it worsens. Most people feel clearly better by day three.
7. What travelers say
"I took the advice and swapped Litang for Batang — slept like a log and was a different person crossing the passes the next day. The guy in the other car slept in Litang and was on oxygen by midnight." — self-drive traveler
"Booked every night using the altitude chart and basically had no altitude sickness, only mild dizziness the first day in Lhasa. Sleeping low really beats taking supplements." — Ctrip user
8. Summary
The 318 never runs short of scenery — what it tests is your sleep quality. Treat "sleep under 3,000 m whenever possible, never overnight above 4,000 m" as law, add no-shower nights, no alcohol, an oximeter and oxygen rooms, and altitude sickness becomes a footnote, not a theme. Ten minutes checking altitude when you book beats 1,000 RMB of oxygen on the road.
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Updated: September 2026 Author: RoamFun Senior Travel Consultant Questions? Contact us: vip@roamfun.net

RoamFun Senior Travel Consultant
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