This is the most uncomfortable sleeping solution I have ever slept on and I've slept on a few. I think it's due to the ridge where the mechanism folds down which digs in to your body all night, but also where the foot bit comes up equally uncomfortable.. (tried to sleep the other way round the following night) and also put a mattress topper on it, which didn't solve the issue. It's fine as a chair but if you want it to sleep on get something else.  Wayfair are fully refunding me for it though so that's great news.