There is a moment, around 7:00 PM, when the magic happens. The train attendant moves through the carriage with the practiced efficiency of a stagehand, and within minutes, your cosy seat transforms into a curtained sleeping berth. You’ve just boarded one of Southeast Asia’s most legendary journeys: the overnight sleeper train from Bangkok to Chiang Mai.
For travellers seeking an authentic Thai experience, this 12-to-13-hour journey is a rite of passage. It’s part transport, part adventure, and part floating hostel room. But as you book your ticket, you’ll face a crucial decision that can make or break your night’s sleep: top bunk or bottom bunk?
The choice between upper and lower berths on Thailand’s sleeper trains has sparked countless debates among backpackers, solo travellers, and families alike. Each offers distinct advantages and drawbacks, and understanding these differences is the key to waking up refreshed in the northern capital rather than bleary-eyed and regretting your choices.
This comprehensive guide will walk you through everything you need to know about the great bunk debate, drawing on real traveller experiences to help you make the right choice for your journey.
The Magic of the Journey: Why Take the Train at All?
Before diving into the bunk battle, let’s acknowledge why this journey deserves a place on your Thailand itinerary. In an age of hour-long budget flights costing as little as £24 , why spend 13 hours on a train?
The answer lies in the experience itself. As one traveller eloquently put it, taking the night train is “the ultimate slow travel experience” that offers “a deeper cultural connection to Thailand as you look out the window in the morning” . You’ll wake up to misty mountains and rural landscapes that no airport can show you.
There’s also the practical advantage of saving a night’s accommodation. For roughly the same price as a budget flight plus airport transfers, you get transport and a bed rolled into one . The second-class sleeper trains are remarkably solo female traveller-friendly, with privacy curtains and charging ports at every berth .
Modern trains, particularly the popular Express Train #9, have improved dramatically in recent years. One returning traveller noted that the experience has gotten “a thousand times better” since her childhood trips . The seats are velvety and comfortable, and the whole atmosphere is one of organised efficiency.
Understanding the Setup: How Sleeper Trains Work
Most travellers book second-class air-conditioned sleeper carriages, which offer the best balance of comfort and value. First-class private cabins exist but are fewer in number and book out quickly . For most of us, second-class is where the action happens.
In second-class, seats face each other in pairs. After dinner, around 7:00-8:00 PM, attendants transform these facing seats into upper and lower bunks . The transformation is impressively quick—within five minutes, your area becomes a proper bunk bed complete with privacy curtain, reading light, and fresh linens .
Here’s where understanding seat numbers becomes crucial. The ticketing system follows a specific logic:
- Odd-numbered seats are upper bunks
- Even-numbered seats are lower bunks
If you’re travelling with a companion, this creates an interesting dynamic. To sit together during the day, one of you must take an upper bunk and the other a lower bunk, as they are opposite each other. If you both want lower bunks, you’ll each be facing a stranger .
The Bottom Bunk: Space, Views, and Comfort
Let’s start with the favourite among most travellers: the lower berth. This is the premium option for good reason, and those who’ve experienced it tend to become loyal advocates.
The Space Advantage
The most obvious difference is physical space. The bottom bunk is noticeably larger than its upper counterpart. One traveller who experienced both directions noted that on the way back with a bottom bunk, there was “a bit bigger so I had more room to spread out” . This extra space matters when you’re spending 13 hours in a moving vehicle.
The additional room also provides practical storage options. You can tuck your bags behind you on the bunk, keeping valuables close and out of sight while you sleep . This sense of security, knowing your belongings are literally at your back, adds peace of mind that’s hard to quantify but deeply appreciated.
The Window View
Perhaps the bottom bunk’s greatest asset is the window. While the train departs Bangkok in the evening, the magic happens at sunrise. As you approach Chiang Mai, you’ll wake to mountains and rural scenery that define northern Thailand’s beauty.
Bottom bunk occupants have front-row seats to this spectacle. One traveller who chose the top bunk specifically noted that next time she would “book a lower bunk for the temperature but also to get access to the window where you can see the sunrise” . Another traveller who ended up in a windowless upper bunk lamented that “the romantic idea of looking out of the window and watching the sunrise was quashed” .
Temperature Control
The bottom bunk also tends to be warmer—and on Thailand’s aggressively air-conditioned trains, this is a significant advantage. Multiple travellers report that the top bunk sits directly next to the air-conditioning vents, making it significantly colder . One top-bunk dweller advised wearing “all the layers could” and noted the train “did get very cold, especially with the top bunk being next to the air-conditioner” .
The Practical Considerations
Bottom bunks are easier to access, particularly for anyone with mobility concerns, older travellers, or those who make frequent bathroom trips during the night. There’s no climbing required, just a simple step from the aisle into your berth.
However, bottom bunks aren’t without minor drawbacks. You may experience slightly more disturbance from passersby in the aisle, though the privacy curtain provides good separation. You might also catch some of the train’s night-time activity, though most travellers report sleeping soundly.
The Top Bunk: Cozy, Private, and Chill—Literally
Now let’s ascend to the upper berth, the underdog of sleeper train travel. While bottom bunks enjoy the spotlight, top bunks have their own devoted fans and distinct advantages.
The Cozy Nest Effect
Top bunks create an undeniable sense of cozy enclosure. One traveller described the experience as feeling like “Some Like it Hot—people chatting and passing snacks” . The slightly smaller space creates a snug, den-like atmosphere that many find conducive to sleep.
While some describe the top bunk as feeling “a bit like coffin” due to limited overhead space , others appreciate the wrapped-in security of the arrangement. A solo traveller on the top bunk found herself “cozy and happy,” doodling in her notepad and enjoying the novel experience . It’s all about perspective—and personal space preferences.
The Privacy Factor
Paradoxically, the top bunk offers enhanced privacy. You’re physically removed from the aisle, elevated above the passing foot traffic and activity. With the curtain drawn, you have a private cocoon that feels more secluded than the ground-level berth.
This elevation also means you’re less likely to be disturbed by early-morning activity. As one traveller noted, top bunks provide separation from the hustle when attendants begin converting beds back to seats around 6:30 AM .
The Budget Consideration
On some services, top bunks are slightly cheaper than bottom bunks, reflecting their lower demand. For budget-conscious travellers, this small saving can add up over multiple journeys. While the price difference isn’t massive—we’re talking a few hundred baht at most—every saving counts on an extended trip.
The Chill Factor (Literally)
We’ve mentioned the temperature issue, and it deserves emphasis. Top bunks sit directly beneath the air-conditioning vents. For some, this is a blessing. Thailand’s humidity can be oppressive, and the direct airflow provides relief. For others, particularly those who feel the cold easily, it’s a challenge.
The key is preparation. If you book a top bunk, pack warm sleepwear and perhaps an extra layer. One traveller advised bringing “a comfortable hoodie (the A/C is freezing)” . With proper preparation, the chill becomes manageable—some might even say pleasant.
The View Situation
This is the top bunk’s undeniable weakness. Upper berths generally lack windows . You won’t see the sunrise over the mountains or watch rural Thailand unfold as you approach Chiang Mai. One disappointed traveller noted that the top bunk “does not have a window and very little space overhead” .
However, defenders of the top bunk note that the train departs after dark, so you’re not missing evening scenery. By morning, you can always descend to an empty seat by a window if available, as people disembark at earlier stations . It’s not the same as having your own window, but it’s a reasonable compromise.
Traveller Experiences: Real Voices from the Rails
The best way to understand the bunk debate is to hear from those who’ve lived it. Here’s what actual travellers report:
Bottom Bunk Enthusiasts:
One traveller who tried both positions was unequivocal: the bottom bunk offered “more room to spread out” and the ability to keep bags close . Another specifically noted that next time she would “book a lower bunk for the temperature but also to get access to the window” .
Top Bunk Defenders:
Yet top bunk loyalists exist. One group of friends booked top bunks opposite each other and thoroughly enjoyed the experience, describing it as “Some Like it Hot” with a fun, communal atmosphere . A solo traveller on the top bunk found it “cozy and happy,” appreciating the novel experience .
Mixed Experiences:
The most honest reviews acknowledge trade-offs. One traveller rated the overall experience highly but noted that “if you are staying in the upper bed the light and AC are annoying, so it’s hard to get some sleep” . Another mentioned that “the top bunk was a tad smaller than the bottom but felt just as comfy and just as clean” .
Beyond the Bunk: Practical Tips for a Great Journey
Whichever bunk you choose, these tips will enhance your sleeper train experience.
Booking Strategy
Book early—especially if you have a bunk preference. Tickets for popular trains like the #9 Express sell out quickly, sometimes within minutes of release . Use 12Go Asia for convenient online booking, though note they charge a service fee and may not allow bunk selection . For maximum control, visit Bang Sue Grand Station (Krung Thep Apiwat Central Terminal) in person to purchase tickets .
Understanding seat numbers is crucial. If booking online and given the option, remember: odd numbers = upper, even numbers = lower .
Packing Essentials
Regardless of bunk choice, pack these items:
- Warm layer/hoodie: The air conditioning is aggressive
- Eye mask: Lights remain on in the carriage, though reading lights are individually controlled
- Earplugs: For light sleepers
- Snacks and water: While food is available for purchase, having your own supplies is wise
- Toiletries: For freshening up in the morning
- Entertainment: Downloaded shows or a good book
Luggage Considerations
Pack light enough that your bag fits under your seat or bunk. Large suitcases can be problematic in the limited space . If you have bulky luggage, consider storing it in the luggage area near the carriage entrance.
Food and Drink
Attendants come through with food and drink menus after departure. Dinner and breakfast are available for purchase, with mixed reviews on quality . Some travellers recommend bringing your own food, while others found the train meals perfectly acceptable . A free bottle of water is typically provided at your seat .
Morning Arrival
Trains usually arrive in Chiang Mai between 6:30 and 7:00 AM . Attendants begin converting beds back to seats around 6:30 AM, so be prepared for an early wake-up . The station is small and charming, with songthaews (red trucks) and taxis waiting to take you into town for 30-40 THB .
The Verdict: Which Bunk Should You Choose?
After weighing all the evidence, here’s our recommendation:
Choose the bottom bunk if:
- You value space and room to spread out
- You want to wake up to sunrise views over the Thai countryside
- You run cold and want to avoid direct AC blasts
- You have mobility concerns or prefer easy access
- You want to keep your bags close beside you
- This is your first sleeper train experience
Choose the top bunk if:
- You’re on a tight budget and want to save every baht
- You enjoy cozy, enclosed spaces (the “nest” effect)
- You run hot and appreciate direct AC
- You’re travelling with a companion and want to sit together (one top, one bottom)
- You prioritize maximum privacy and separation from aisle activity
The couple’s compromise: If travelling with a partner or friend, booking one top and one bottom across from each other works beautifully. You sit together during the day and have adjacent bunks at night, able to chat across the aisle with curtains open or retreat to privacy when desired .
Conclusion: The Journey Matters Most
Here’s the comforting truth: regardless of which bunk you choose, you’re in for a memorable experience. The Bangkok-Chiang Mai sleeper train is one of those travel experiences that sticks with you—the gentle rocking of the carriage, the clack of wheels on tracks, the magical transformation from seat to bed, and the sunrise reveal of northern Thailand’s beauty.
Even travellers who ended up in less-desirable bunks generally recommend the experience. One who found herself in a windowless upper berth still called it a “beautiful experience” . Another who struggled with light and noise said they would “try again but hope for improvement” .
The bottom bunk may have advantages in space, temperature, and views. The top bunk offers coziness, potential savings, and enhanced privacy. But both deliver you to Chiang Mai with a story to tell and a genuine Thai experience under your belt.
So book your ticket, pack your hoodie and eye mask, and prepare for one of Southeast Asia’s great railway adventures. Whether you’re gazing out a window from your spacious lower berth or tucked into your cozy upper nest, you’re doing something right—you’re travelling the way travel should be: slowly, memorably, and with the rhythm of the rails in your soul.