I'm looking for some really soft black or plain pyjama bottoms type/wide leg trousers that I can both sleep in, and lounge in. Everything I have tried has a bulky waist, or pockets, which make them too uncomfortable to sleep in. I am small framed and short (5'1) and I can't seem to find anything. I'm not very sure what is classed as extra soft fabric these days - silk would be too pyjamary /shiny, I think - and I'm confused between modal and bamboo? I'm around a size 12/14 (for comfort) depending upon the make. Many thanks