Platform: PC

Hello,

Back story:
I've recently contracted Porphyric Hemophilia, or, Vamperism. I missed the deadline to dispel it and now I'm a full blown stage 4, which means (NPCs will attack on site). Thus, this prevents me from getting a cure do to my character not feeding for a extended period of time. This all prevents me from fighting dragons because I'm the equivalent of pouring gasoline and filling my body with pure oxygen; I become toast.


Almost there:
The only way to cure this is to find a sleeping victim, and drink their blood.. Awesome, except..



Problem:
Currently in my Skyrim, no one knows how to sleep. I have been to every type of settlement, camps, shacks, everything that has a bed, and a npc to fill it. But no luck, they will skip the sleep sequence.


Experimentation:
I watched for not one, not two, but three in game days, on high elevated areas in sneak mode; three different NPCs. All followed their script except sleep; they enjoyed time in chairs, more time in chairs, walking in the woods randomly, fighting over different NPCs, and time in chairs.


Question: Is there any way, or anyone that sleeps, can sleep, or lacks sleep depravity?