Don't make the mistake of thinking its item limited I know there are collars out there for animals/animal forms/people who like/need that sort of thing which grant the same benefits as rings of protection. You could easily have a dog collar of sustanence for the rangers animal companion so the pair only needs 2 hours of sleep a day.
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Ring of Sustenance and Spellcaster's rest
- Thread starter Legildur
- Start date
The item is great for allowing shorter rest periods, it just doesn't allow you to recover spells more often in the same day.
I love the Australian / New York mage example, that was a great read 
I had to add my own hypothectical:
What if instead of Australia, the Mage teleported to meet his fellow mage, a resident of Pluto. His friend then has to wait about 6.5 earth days for his "day" to be over while our earth mage happily takes a nap at what amounts to early morning Pluto time and proceeds to memorize his spells again?
I'm just kidding of course!
I agree with previous posts that the best way IMO is just to say a "day" is a 24 hour period and say it applies to anything that has a "per day" limit - spells, abilities, magic items, etc. If you overlap time zones, until the 'port lag wears off, you are just going to have two wizards on different "day" cycles.
At any rate, we've run into this in my games before (looks like a common issue!) and I have ruled the same as others regarding it allows "sleep" but does not affect the number of spells "per day". Wizards become extremely overpowered if allowed to cast their full allotment 3-12 times per day.
In fact, Extend Spell would allow for all sorts of shenanigans of you could re-memorize and cast through all of your spells every two hours. I think DMs that allow the ring to work this way probably don't have very creative players : )
I had to add my own hypothectical:What if instead of Australia, the Mage teleported to meet his fellow mage, a resident of Pluto. His friend then has to wait about 6.5 earth days for his "day" to be over while our earth mage happily takes a nap at what amounts to early morning Pluto time and proceeds to memorize his spells again?
I'm just kidding of course!
I agree with previous posts that the best way IMO is just to say a "day" is a 24 hour period and say it applies to anything that has a "per day" limit - spells, abilities, magic items, etc. If you overlap time zones, until the 'port lag wears off, you are just going to have two wizards on different "day" cycles.
At any rate, we've run into this in my games before (looks like a common issue!) and I have ruled the same as others regarding it allows "sleep" but does not affect the number of spells "per day". Wizards become extremely overpowered if allowed to cast their full allotment 3-12 times per day.
In fact, Extend Spell would allow for all sorts of shenanigans of you could re-memorize and cast through all of your spells every two hours. I think DMs that allow the ring to work this way probably don't have very creative players : )
I fully agree, there are loads of spells that already have significant advantage with extend spell such as Greater and Superior Resistance and Mind Blank which extend to 48 hour durations. It keeps the caster protected and they get the slots for other spells the following day. It just takes some planning and creativity.
