I wear a t-shirt that gets tossed in the laundry once a week.
Upon reading this question I immediately thought of the old shows where everyone wore long sleeved , buttoned up pajamas like Dick Van Dyke, I Love Lucy and The Brady Bunch. How times have changed.
I used to wear sleep clothes for 2 or 3 nights, but now I change them every night, but I work from home and sometimes in my PJ’s until noon. Lol. Not usually though. Usually, I shower or pull myself together around 9:00.
Once in a while I wear a sleep shirt two nights in a row at most now.
I wear cotton pajama pants or shorts and either an old t shirt or tank top to bed. I wear a different top each night because I often sweat but I can wear my bottoms longer without a wash for several days.
I usually take a shower at night, and put a t-shirt and boxers on. The morning I put a regular shirt over my t-shirt if I’m going to work and throw a pair of pants on. Then when I come home everything goes in the laundry. Wash rinse repeat.
I take a shower before bed and put on a t shirt and briefs. In the morning I either take another shower and change, or just change the t-shirt and brief and get dressed.
I never reuse.
I wear a t-shirt to bed every night, and in the morning I change into work clothes or church clothes, so then the t-shirt is put in the laundry. But I also wear fleece pants to bed most of the time and those I will wear for a couple days, unless I’m really sweaty for some reason.