I don't think it's a sleep study. I did one as a control for a local hospital so the students could get used to the equipment. I used to be a nurse. I did not talk about going on a journey or need five pairs of knickers. Would anyone buy a fitness tracker watch on Emma's recommendation? I think it must be weight loss related. She said she is making a you tube video which she can't show yet so maybe they are filming the large meals/fast food she used to eat compared to the slim active Emma that will emerge. If she is doing something like this I genuinely hope it works. To be honest I find it difficult to think of any other content which would get as much engagement.