need a lot of sleep

Hi,

I need a lot of sleep. Like tonight, I slept 8 solid hours and I was still really tired when I got up. I feel that sleeping 9 hours is best for me. But since I normally don’t sleep that much I am often tired.

Are there any ways to make your sleep more efficient? I would be extremely happy if i could wake up totally rested after 8 hours sleep or even less. I already don’t drink coffee after the morning and I don’t train before going to sleep.

Any suggestions?

Regards, Lau