The Deepest Sleep was pretty good, I kind of wish there was a little more to the overall story but maybe that's unrealistic to ask for a flash game. Puzzles were a little easy but I'm nitpicking at this point. I'd really like to see scriptwelder create something new outside of flash but for now The Deepest Sleep is worth checking out.
You can tell this is a step up from the 1st game with an extra level of detail and nice world-building. The puzzles also made a bit more sense while making some good callbacks to the 1st game. The game doesn't feel like it ends to soon either, Deeper sleep is worth a playthrough.
It's been some years since I last played it and it's still pretty good. A bit shorter than what I remembered but the author has the sequels to play as well.