Hi,
i have a WWR, and i saw him also one night sleeping in the corner. When he woke up and went away, i could see that he digged and peed all over the place. Now he is no more sleeping there i thing, but he pees there (instead of in his house as before, guess he grew up, haha).
I also saw him sitting in his wheel and i panicked, but i read in the forum that its nothing weird...
So i guess its normal for them to find a favourite spot maybe? Is he in a new cage? Mine is in it for 2 weeks now but seems to settle just now
Mine uses forepaws and legs to clean himself. It looks like he is biting his leg and than schratching himself, but its cleaning actually (so fast leg,LOL)...
Im just a beginner with hamsters, but i thought some similar hamster behaviour could help you... good luck, im also looking forward to some more experienced opinions.