thank you for your advice, but the leatherite will only be used on the bed back rest and cupboard. The cupboard panel and all around the cupboard will be polish. As per your input, the bed back rest or the whole bed should be darker color ? the cupboard and the bed should be of the same leatherite color ? which color And the whole room should of which polish ?

I'd suggest you have a look through the photos section on Houzz - or there's quite a few good articles on how to decorate :) maybe both you & your wife could save pictures to an ideabook with a few words on what it is you like about each one, and it'll give you more of an idea of what type of things you like? I think colour-wise, turquoise and peach can go together really well - maybe a warm cream colour on the walls & pops of turquoise and peach in the form of throw cushions etc.? Again, just searching on Houzz can give you some great ideas - just literally searching 'turquoise and peach' brings up quite a lot of pictures :) to get you started I've just picked out a few which I personally think work well :)

I am open for suggestions as I still have time to buy. Still, in delimma, whether I should go for solid wood or something else.

The above is really the best layout for your bed and you could add a bench at the bottom. If you want to make it different, if it fits, you could try bed across the corner on the right. You can achieve a unique bedroom by its decor though and place furnitire where it works best for circulation. In regards to the sitting area, given the narrow space, if it's wide enough try a love seat across from bookcases/including tv and fill shelves with great accessories. Use wallpaper for added interest in either room.