glass
(he, him)
There is nothing special about a 20 on a skill check. If a character with no bunus can make it on a 20, then a character with a +19 bonus can make it on a 1.Cartigan Mrryl said:Anyways, a Dragon DOES sleep, if you check in the MM (near the back, 3.5, at least) there's a table that says stuff about each type/sub-type. It says that Dragons DO sleep and eat. Anyways, Dragons can be snuck up on, but it would most likely take a 20 to do so, they're highly alert and are extremely cautious, mostly.
In the case of a non-sleeping dragon, you can't sneak up on it (barring some kind of special ability or feat). It's blindsense ability will trump and H/MS rolls, no matter how good.
Whether the same applies to a sleeping dragon is unclear. If it's blindsense is fully functional, then it doesn' need to make the listen check and will awaken. And blindsense is based on hearing, which you can do while asleep, which suggests yes. OTOH, blindsesne is only partly based on hearing, and hearing works with reduced capability while asleep, so you could argue that blindsense doesn't work while asleep, or that it only works with reduced capacity.
I don't believe ther is a definitive answer to this, but my ruling would be that blindsense works at reduced capacity while asleep. It does not remove the need for the listen check to awaken, but it does remove the penalty to it.
glass.