#beneath?

this is the most RANDOM thing ever at this point but i remember a clip where Wilbur is giving Tommy a riddle of "i have a bed but i never sleep" and tommy replies "tree" which is apparently wrong, but i defend that answer because i SWEAR TO GOD "tree bed" is the term for the area around the bottom of a tree where you sit but google isn't giving me results so like, am i insane???? is that not the term??? i can't even find a term for like, where the trunk meets the ground where you can sit underneath IN THE TREE BED but like ??????????????