Possible Clues:

• Crude bed, to Brits
• Crude bed, in Soho
• Sleep like a tramp
• Quantities of drug, not Ecstasy, needed for sleep
• In slang, sleep on sods
• Do go on board and sleep
• Sleep (in cheap lodgings?)
• Sleep, in British slang
• Sleep somewhere convenient
• Sleep is something easy to do!