I checked the prices for a Low Berth (not Emergency Low Berths)
It was Cr50,000 in Classic Traveller Book 2 (Starships), T20 Traveller, and The New Era.
Mongoose 1st Edition and Marc Miller’s Traveller (T4) both priced it at MCr0.05 (50,000 credits).
Traveller5 listed it at MCr0.1 (100,000...