"Read in bed until I feel sleep coming on" I have been doing this since I can remember and it works great for me too, but I have heard one theory that it is no

"Read in bed until I feel sleep coming on" I have been doing this since I can remember and it works great for me too, but I have heard one theory that it is not optimal since you may start to associate bed with reading instead of sleeping. Theoretically you should read in a chair or something and then move to your bed when you are getting drowsy. Not sure if there is any merit to that, but it may help.