hi star,
haha.. i am flattered
Basically i learnt all these things from my mum. Believe it or not, those bedsheets that my mum choose for my single bed when i am not married yet are all cotton sateen, life of the bedsheet that it can last - more than 5 yrs to 8yrs.. haha.. the best part besides its durable, the bedsheet gets smoother and smoother.. very nice to feel like silk..
So now i am married and shopping with my wife, i normally go for cotton sateen.. its soft, smooth to touch, durable.. haha.. i love it especially clean sheets when you lie on the bed.. wahhh.. shiok man..
most important of all is the material, cotton thread.. i always open the pack and feel the whole bedsheet..
One more important thing i learn,if you are buying fitted sheets, if can open up in full, stretch the band (i call it rubber band).. It must be strong else after long usage, it will get loose and it will not fit that well too..
Hopefully i have give you guys some tips when buying bedsheet. Cheers and happy shopping