Well Rested



A status effect that grants the player a +10% experience boost for 12 hours after sleeping in bed you own in Fallout 3 and Fallout: New Vegas.

Fallout 3
The  effect is obtained by sleeping in a bed you own (i.e. in your Megaton house, your Tenpenny Tower Suite, a rented bed, or a cot in Kenny's Cave).

The Broken Steel Perk, Deep Sleep, grants this status effect after sleeping in any bed.

Fallout: New Vegas
Like Fallout 3, the effect is obtained by sleeping in a bed you own (i.e. in your Lucky 38 presidential suite or Dino Dee-Lite hotel room in Novac) or sleeping with certain characters like Sarah Weintraub or Red Lucy.