Hello I have different techniques I could share:
- grey sheets works well at hiding lol! ( I buy mine from Sainsburys)
Since you never go “under” the cover I buy around 5-7 sets of bed cover from Primark: grey or purple and rotate them throughout the day.
Another thing while on tour I take grey/blue towels (a huge pack maybe 10-15 towels) and display a new one on the bed each time + display some in the bathroom too, on top of the cover I brought,I know this sounds strange, but when I do blowjob they get very sloppy, so nice to have a towel handy. On many occasions guys get sweaty so good for that as well. Some guys (minority) are put off by the whole towel thing, but honestly how many time do guys sweat like crazy? And fuck them bed lol.
So yes in terms of colour: grey is good, easy to wash as well