"I have no problems sleeping at night," a relaxed Hamren told a news conference at the Olympic stadium in Kiev on Sunday.
"I don't lie awake watching videos or DVDs. And when I sleep I dream that we win, and when I wake up, I wake up happy."
When asked how he would spend his time on matchday before kick-off, Hamren added: "I'll hopefully wake up with a smile and try to train a little, try to improve the fat percentage.
"When the players rest... I'll rest too, and maybe I'll dream. That's the important thing with dreams - a wise man once said that if you're going to realise your dreams, you have to be awake.
"I hope in some way to experience us achieving our dreams."
"Elmander is OK to play. We'll make a judgement later as to whether he'll play or not - that's the next question."
"I feel a lot of pressure. Wherever I came to play, even in the club team or national team I have had it," he said.
"[But] I like to play under pressure, it gives you something to play for.
"It's the first match for both teams, and clearly there can be some nerves to begin with, but I think both teams have plenty of confidence, both want the ball as much as possible."
The AC Milan striker declined to single out any of Ukraine's players as a particular threat, saying: "I don't see any individual as a key player - the whole team is made up of key players."
"I think it's only football people who will be coming tomorrow.
"In my world, football is for everyone. It's a religion and everyone is welcome."
