It seems like i'm levelling slower ever since I became a werewolf. No sleep? I could just be getting higher in level though and it just takes longer.

You lose the ability to get xp bonuses from sleeping. If you weren't getting those anyway (ie not sleeping) there is no difference.

Pretty much, other than the sleep xp. I dont see a difference.

I'm level 18 and have played for 51 hours is why i ask. Maybe i'm just slow. I am taking my time exploring different things. Doing alot of the crafting and guild stuff.

My character is a werewolf, level 37 with 55 hours of gameplay (I'm addicted ) But as others said, it just doesn't give you experience bonus from sleeping. I'm exploring a lot, which in turn is sending me the way of a lot of fights levelling me up rather quickly