DND_Reborn
The High Aldwin
Oh, nighttime "resting" encounters! I love those when I DM.Well actually this happened during the nights rest. So the wraith went right through the PC on guard duty and had advantage on the prone/sleeping PCs. They were trying to rest in an area closely associated to the Shadowfell. Oh, and in addition the cleric was AWOL.
As far as just resting (again) that's a question of pacing and threat. It was simply a dangerous area. I don't hand out magic items like candy so her AC is 15 and I don't see that improving all that much any time soon.
But they survived. This was supposed to be a relatively easy random encounter, 5th level party vs a single CR 5 monster isn't even a medium encounter based on how I calculate. If I really wanted to challenge them it would have been multiple wraiths, popping in and out of walls. Maybe throw in magical darkness like the encounter that almost took out the monk.
There are a lot of ways to make a deadly encounters in 5E, this one just happened to be a bit more deadly than I had expected.

I agree, that should have been an easy encounter by my calculations as well. Doing it at night while most of the PCs are sleeping, unarmored, etc. would probably bump it up to a moderate, but anything worse is just a result of poor luck on the party's side IMO.
I think part of the problem I saw when writing the OP was also because I was thinking more in terms of our current game. While no where near Monty Haul, it is pretty liberal when it comes to magic items, etc.
Honestly, I prefer a grittier game where finding a suit of plate mail is still a big deal after 5th level. I tell players I like the 1 gp = $100 USD in modern times to give people an idea of what is wealthy. It works well the the living expenses guidelines, etc. in the PHB. So, that 1500 gp plate armor today would cost about $150,000 USD!!! (or more). Most players' first response is "Holy $hit!!!" So some of the issues will be resolved by keeping the game more low-key.
In the same light I would rather have fewer magic items, but the ones they get are truly prized! Our current DM's philosophy is everything is random. Our prior barbarian (no longer in the group) acquired a greatsword +3 at level 5! Talk about messing with the balance of things! But, the DM rolled it and let it go. Later an NPC warned the barbarian such a powerful item would be sought after and hard to keep... We never found out what happened to that barbarian...
