A slightly different review here - Traveler's Tree 'Adventure Nightwear' - or to you and me, 'pyjamas'.
If you like to travel with pjs then these are about as good as they get since they're super light and super comfy being made from a mix of 55% silk and 45% Egyptian cotton.
They pack down really small and weigh between 142 - 300g depending on the size you take, and the loose, baggy cut makes them not just great for sleeping in but also good for just hanging around in, whether that's drinking cocktails on the terrace of your fancy hotel or (more likely for most of us) slobbing out in front of the TV.
You obviously would be unlikely to take them on a backpacking trip but for car camping and hotel stays they're ideal.