People don't sleep as early as you in Solitude. Had to wait ages until long after midnight for Elisif to finally nod off so I could get that stone again. Then later I went breaking in to someone's house to ... remove some valuables, and I successfully sneaked past the bedroom in my new, silent boots, grabbed the "thing" and heard him yawn loudly.
I backtracked to peep into that bedroom and he wasn't even there!
Tiptoeing down the stairs, I peered round the corner to see him cooking at 3AM!!
I escaped via a different door.
If you like greenery here are all the plant codes...
There are loads of other codes for the landscape trees too but they're a bit massive and would need scaling down.
For the dreamcatcher things, do you mean these round things I found in my Riverside Lodge bedroom...
Some of those codes are... 000B9FC9 000B9FD2 000B9FD5 000B9E21
And now that I'm actually looking around my own rooms I quite like that floaty Whiterun banner.
Those are 000DEE46 and 000DEE54.
Looking at the creation kit there are lots of other banners too of varying sizes and for various factions but some of them do seem to flap about as if you're in a hurricane.