Hrm, really kinda difficult question, I mean, there is no one flavour of of elf or dwarf, also whatever kind of mood I might be in! Are we having sex? Or just sharing the same bed? Cuz, while dwarves seem like they'd take less room, they are actually kind wide - which is one of the major things about a bed! Where elves are often more wispy and would take less room! I mean, I imagine dwarves probably have rowdy sex, and elves like some sorta, sensual soap opera scene or some such.
So yeah, given no real requirement for sex, I might go elf, they are nice and smooth if you snuggle, and you aren't rolling into a bush of thick wirey beards in the middle of the night~
I'll pass it on too!~