We started our own home grown brand of bedsheets at kapas living. Try not to get mislead by all these 10000 threadcount nonsense. You only really need good quality cotton and 400 true threadcount. Usually like pretty good quality sheets 400 true threadcount is enough some places go up to 800 but then you get a very dense set of sheets. For our Malaysian weather we think that 400 tc is good enough. I'd think about the material used for the cotton thats also equally important. For ours we use extra long staple cotton which means that we use the longest staple of cotton. If you think about it the shortest staple cotton people use would be microfiber made from the little bits of cotton thats why its so rough and not as nice to use to sleep on.