Will I be able to postpone my bedtime? Have you ever spent a day with a native speaker who you were speaking with all the time? If you are not used to it, it could be very tiring. My friend from America was visiting me for 13 days in January. I really enjoyed her company and we did a lot of things together. However, I wanted to be in bed around 9 every evening. I was always exhausted. Moreover, I could not remember English words after 8 p.m. and it seemed to me that my brain stopped working. When I laid down, my head was spinning like I would have drunk a lot of alcohol. I slept like a log those days. My friend thought that I normally sleep so many hours but I do not! I usually sleep between 6 to 7 hours . I know that I would get better, if I had practiced more. I have been working on it very hard these days because a good friend of mine is coming to Prague in May. I want to postpone my bedtime for 10 p.m. when she is here. To be honest, no one knows… maybe it will be unusable at 9 p.m. again.