I could not find where to choose berth type when booking. During the journey strong light in the ceiling were on during the whole night. A printout (A4 paper size) of the valid ticket is needed for verification though QR-code verification from phone is available.
Compartment was of course small but had everything I needed - AC charging/use for phone and laptop. Large people may have trouble getting into top bunk. The curtain gave some privacy. Happy with 5-6 hours of good sleep!
Cherdchai Tour, Glassflower, Kim Transfers Thailand, MCC VAN, Nok Air, Sawadee Surin, Thai AirAsia, Thai AirAsia, Thai AirAsia, Thai Lion Air, Thai Lion Air, Thai Railway, Than Car Service