The principles of sleep hygiene in treating insomnia (one example) include addressing the cognitive links between the bedroom and wakefulness - advising that one leave the bed/bedroom if one can't sleep, use the bed/bedroom for sleeping/sex only, and some even recommend changing clothes in other rooms.
But many people live in studios or bedsits - accommodations where there aren't other rooms, and in some extreme cases even where the end of the bed doubles as a chair to work at a desk, and they often don't have a "bed area" distinct from any "working area".
Sleep hygiene recommendations generally seem to presume access to a range of available and distinct spaces/rooms in ones' accommodation, which is often not the case.
How can the links between bed/bedroom and wakefulness be addressed, and what can a chronic insomniac do, in such accommodation?
(A related problem can be when a bedroom is shared - the advice to get out of bed and leave if unable to sleep, and try again a while later, can be impractical due to the impact on a partners' sleep, unless a second bed/bedroom is available.)