I'm married and live in a tiny apartment in NYC (well, I just moved into a bigger tiny apartment in NYC so there;s a bit more space). My wife doesn't always like it but she knows how important the practice is to me so on Uposatha days I either sleep on the floor next to the bed (when my 19 month-old isn't occupying that real estate on his toddler mattress) or I sleep in the living room or in his little room that has yet to be used for sleeping. I think more tahn anything she is annoyed that on Uposatha days we can't watch movies or TV shows together but it's only once a week so she deals with it. Anyway, I hope I answered your question. May you be well.
To avoid all evil, to cultivate good, and to cleanse one's mind — this is the teaching of the Buddhas.
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