I want something to wear in bed but am quite picky...I like to wear a top and knickers (not for everyone I know but this is me!). I don't want a nightie because it rides up, I don't want pyjamas because I'd get too hot and there's too much material so I just need a loose T-shirt or vest top but it must be soft slightly stretchy and quite thin. I don't want any old strappy vest though or any old T-shirt.,.anyone get what I mean and willing to help?!