Those short summer nights

Well, it is not nearly as hot and summery as not so long ago, and nearly not as sunny, but summer is here nevertheless and the days are getting longer and longer. There is one aspect of it I have often a problem with: daylights come early, especially since the bedroom is facing East... So whenever the time i go to bed, I wake up terribly early, especially when it is sunny. I am a night owl and I easily get insomniac. So I could do without the sun peeking through the window. Summer is a lot of things, but it is not a restful season...